![When did Blue Chips go on sale? | The range launched in stages in 2021 [OK Prostate Chip]](/img/a/T0841/eyecatch.svg)
This page is based on entries from "ok-lab's diary" (https://ok-lab.hatenablog.com/), the Japanese development diary written by Mr. Okada, founder of OK Lab, a small company in Japan (Okada Comfortable Life Laboratory). Only the entries about "the Blue Chip launch" are summarized here, in order of publication. Past prices and sizes are as written at the time. Current prices come from the official product list (retrieved September 4, 2026). Quotations are translated from Japanese.
Note: This page is a personal reading log by someone with no connection to the maker or the seller. It reflects the source entries as of their publication dates and makes no guarantee of accuracy or safety. The product is not a medical device; talk to a doctor about any health decision. Check the official site for current information. This page contains advertising.
In short
- Blue Chip releases were announced in stages from July through November 2021.
- Mr. Okada offered several body shapes, a combined stopper and separately selectable support parts.
- The current product list includes resin chips and accessories, with prices in yen including tax.
About this product
The OK Prostate Chip is a small device that is placed in the urethra (the urine passage) so that it acts on the prostate; the maker sells it in several shapes, sizes and materials. It is made and sold by OK Lab (Okada Comfortable Life Laboratory), a small company in Japan, through its own online store, and prices are in Japanese yen (JPY).
The maker's development diary, "ok-lab's diary", is written in Japanese. This page is an English summary of it, and every quotation is translated. OK Lab ships internationally, so readers outside Japan can order (see "Buying from outside Japan" below).
Product names on this page are plain-English descriptions. The official Japanese product name is shown once in the product table so you can find the same item in the store.
Before you read: key terms
| Term | Plain-English meaning |
|---|---|
| Blue Chip | The diary's name for the resin range, covering main chip bodies and related accessories. |
| Biocompatible resin | The material named for these bodies and accessories. The diary does not explain this. |
| Double-thread format | A connection format using two threads to connect chip components. |
| Screw-shaped auxiliary chip | A supporting part paired with the sculpted body; Mr. Okada reports that it helped the body sit in place. |
| Sphincter stopper | An accessory offered with different hole arrangements. The diary does not explain this. |
| Epoxy resin | The earlier material used for the 3-hole stopper and screw-shaped auxiliary chip. |
| Safety tip | The maker's name for a separate thread accessory. The diary does not explain this. |
What happens: Blue Chip launch
The material does not describe what the base device, the OK Prostate Chip, is. Here, Blue Chip names bodies and accessories made from a material the diary calls biocompatible resin. The announcements covered several shapes, supporting parts and thread accessories, released at different times. Some accessories connected to the chip's threads; the diary also describes a sculpted body paired with a screw-shaped supporting part.
A July Blue Chip launch plan priced the body and complete set separately
In an entry published in July 2021, Mr. Okada proposed a sculpted resin chip paired with a screw-shaped auxiliary chip. The body was ¥4,500 (about $29 at ¥156 = $1, rate as of 2026-09-04) tax excluded, with ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) for thread connection and ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) for the auxiliary chip.
The complete Blue Chip set was ¥8,000 (about $51 at ¥156 = $1, rate as of 2026-09-04) tax excluded. Mr. Okada had not settled a price for a titanium version.
(Source: ok-lab's diary, published July 2021)
https://ok-lab.hatenablog.com/entry/2021/07/24/125923
The August Blue Chip launch specified a sculpted body for two threads
In an entry published in August 2021, Mr. Okada announced that some resin products would go on sale the following week. The standalone sculpted resin chip was ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) tax excluded, including a ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) thread charge.
Lengths were 36 mm for S, 40 mm for M and 44 mm for L; M was 3 mm thick away from the bumps. Mr. Okada specified the double-thread format (a connection using two threads) for this model.
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
The September Blue Chip launch added a short resin body
An entry published in September 2021 announced the short resin chip at ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04) tax excluded, including a ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) thread charge. S, M and L lengths were 27 mm, 30 mm and 33 mm; their widths were 8 mm, 9 mm and 10 mm, respectively.
The M model was 3 mm thick. Mr. Okada specified two threads for this model.
(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/04/125843
The September Blue Chip launch also introduced a medium-length body
The medium-length resin chip appeared in an entry published in September 2021 at ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) tax excluded, including a ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) thread charge. S, M and L lengths were 38.5 mm, 42.5 mm and 47.5 mm.
Their respective widths were 9 mm, 10 mm and 11 mm, while the M model was 3 mm thick. Mr. Okada specified two threads for this model.
(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/04/125843
The Blue Chip launch expanded with an extended resin body
An entry published in September 2021 announced the extended resin chip for the following week, priced at ¥8,000 (about $51 at ¥156 = $1, rate as of 2026-09-04) tax excluded. That included a ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) thread charge; S, M and L lengths were 51 mm, 56 mm and 62 mm.
The respective widths were 10 mm, 11 mm and 12 mm, while M thickness was 3 mm. Mr. Okada specified two threads for this model.
(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/11/125735
September's Blue Chip launch scheduled the long resin body for sale
An entry published in September 2021 also scheduled the long resin chip for the following week at ¥7,500 (about $48 at ¥156 = $1, rate as of 2026-09-04) tax excluded. The price included a ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) thread charge.
Lengths were 47 mm for S, 52 mm for M and 57 mm for L; widths were 10 mm, 11 mm and 12 mm, respectively. M was 3 mm thick, and Mr. Okada specified two threads for this model.
(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/11/125735
November's Blue Chip launch introduced the short twisted resin body
An entry published in November 2021 announced the short twisted resin chip at ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) tax excluded. S measured 26.5 mm long and 2.5 mm thick; front width was 6.5 mm, while middle and rear widths were 7.5 mm.
M was 30.5 mm long and 3 mm thick; widths were 7.5 mm at the front and 8.9 mm at the middle and rear. L was 34.5 mm long and 3.1 mm thick; widths were 8.5 mm at the front and 10 mm at the middle and rear.
(Source: ok-lab's diary, published November 2021)
https://ok-lab.hatenablog.com/entry/2021/11/20/125643
November's Blue Chip launch included a longer sculpted resin body
In an entry published in November 2021, the longer sculpted resin chip was listed at ¥7,500 (about $48 at ¥156 = $1, rate as of 2026-09-04) tax excluded. Its length was 50 mm, and the listed thickness was 3.1 mm.
The measurement at the bumps was 5 mm. The diary separately listed a maximum width of 7.5 mm and a sideways width of 8 mm.
(Source: ok-lab's diary, published November 2021)
https://ok-lab.hatenablog.com/entry/2021/11/20/125643
The Blue Chip launch added a flat auxiliary part in November
An entry published in November 2021 listed the flat auxiliary resin chip at ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) tax excluded. It measured 18 mm long and 3 mm thick. The listed width was 7 mm at the front and 8 mm at the rear.
(Source: ok-lab's diary, published November 2021)
https://ok-lab.hatenablog.com/entry/2021/11/20/125643
The Blue Chip launch priced its thread accessory and attachment separately
The November 2021 entry listed a two-thread safety tip (a separate thread accessory), with attachment priced separately. Its height was 7 mm, with a 3.5 mm front width and 4.5 mm rear width. Mr. Okada listed the part at ¥1,500 (about $10 at ¥156 = $1, rate as of 2026-09-04) tax excluded, plus a separate attachment charge of ¥500 (about $3 at ¥156 = $1, rate as of 2026-09-04) tax excluded.
(Source: ok-lab's diary, published November 2021)
https://ok-lab.hatenablog.com/entry/2021/11/20/125643
The maker's answer to the Blue Chip launch
Mr. Okada offered different stopper formats, a preferred support material and separately selectable component sizes.
The Blue Chip launch combined two stopper formats in one part
In an entry published in August 2021, the new resin sphincter stopper used an 8-hole format. Mr. Okada said it covered the functions of the previous 3-hole and 6-hole formats. Its price was ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) tax excluded, matching the previous 6-hole price.
A separate 3-hole resin version was not planned because fewer holes would not lower the price. For buyers specifically needing 3 holes, Mr. Okada pointed to the existing epoxy resin stopper (made from the earlier material).
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
The Blue Chip launch brought a preferred support for double-thread orders
The August 2021 entry priced the resin screw-shaped auxiliary chip at ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) tax excluded. Its length was approximately 15 mm. Widths were just under 10 mm for L and 9 mm for M.
S and SS widths were just under 8 mm and 7 mm, respectively. Mr. Okada's material comparison concerned keeping the part when its thread needed replacement. For double-thread orders, he favored this resin part over the earlier epoxy resin version.
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
The Blue Chip launch allowed separate choices for paired components
In an entry published in July 2021, Mr. Okada found that the sculpted body did not sit properly by itself. His report described a better fit with a 4 mm gap between the body and its auxiliary part.
An entry published in August 2021 then described selectable spacing for the combined set. Mr. Okada also allowed buyers to choose each component's size separately.
(Source: ok-lab's diary, published July 2021)
https://ok-lab.hatenablog.com/entry/2021/07/24/125923
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
How the Blue Chip launch changed over time
| Published | What the diary said then |
|---|---|
| Jul 2021 | A sculpted chip with screw-shaped support was chosen as the range's first standard model. |
| Aug 2021 | An 8-hole stopper combined functions previously offered through separate formats. |
| Sep 2021 | SS screw-shaped supports and S stoppers had arrived and were already on sale. |
| Sep 2021 | Short and medium-length bodies were on sale; extended and long bodies were scheduled next. |
| Nov 2021 | Twisted and longer sculpted bodies joined the range alongside new accessories. |
OK Prostate Chip products related to the Blue Chip launch
The current list includes the following resin bodies and accessories, with tax-included prices shown below.
Products that appear in these entries
| Product (official name) | Price incl. tax | Relation to this topic |
|---|---|---|
| 8-hole resin sphincter stopper (八穴方式括約筋ストッパーチップ（生体適合樹脂）) | ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04) | The August 2021 announcement introduced this combined-format stopper. |
| Sculpted resin chip (OKプロステートチップ 凶悪ゾロ（生体適合樹脂）) | ¥5,500 (about $35 at ¥156 = $1, rate as of 2026-09-04) | The August 2021 entry priced this body separately with its thread charge included. |
| Short resin chip (OKプロステートチップ ショートタイプ（生体適合樹脂）) | ¥4,400 (about $28 at ¥156 = $1, rate as of 2026-09-04) | The September 2021 announcement introduced this short body. |
| Medium-length resin chip (OKプロステートチップ セミロングタイプ（生体適合樹脂）) | ¥5,500 (about $35 at ¥156 = $1, rate as of 2026-09-04) | The September 2021 announcement introduced this body alongside the short model. |
| Extended resin chip (OKプロステートチップ 覚醒タイプ（生体適合樹脂）) | ¥8,800 (about $56 at ¥156 = $1, rate as of 2026-09-04) | The September 2021 entry announced this body for the following week. |
| Long resin chip (OKプロステートチップ ロングタイプ（生体適合樹脂）) | ¥8,250 (about $53 at ¥156 = $1, rate as of 2026-09-04) | The September 2021 entry scheduled this body alongside the extended model. |
| Short twisted resin chip (OKプロステートチップ ショートタイプ ツイスト（生体適合樹脂）) | ¥5,500 (about $35 at ¥156 = $1, rate as of 2026-09-04) | The November 2021 announcement introduced this twisted body. |
| Longer sculpted resin chip (OKプロステートチップ ロング凶悪ゾロ（生体適合樹脂）) | ¥8,250 (about $53 at ¥156 = $1, rate as of 2026-09-04) | The November 2021 entry announced this longer sculpted body. |
| Flat auxiliary resin chip (フラット型補助チップ追加オプション（生体適合樹脂）) | ¥3,300 (about $21 at ¥156 = $1, rate as of 2026-09-04) | The November 2021 announcement priced this auxiliary part. |
| Separate resin safety tip (二本糸用セーフティチップ（生体適合樹脂）単体) | ¥1,650 (about $11 at ¥156 = $1, rate as of 2026-09-04) | The November 2021 entry gave a standalone price for this thread accessory. |
| Resin safety tip with attachment (二本糸用セーフティチップ（生体適合樹脂）接続オプション込み) | ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04) | The November 2021 entry offered attachment for an additional charge. |
The short resin chip is sold through the company's own online store.
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/04/125843
(Source: ok-lab's diary, published September 2021)
https://ok-lab.hatenablog.com/entry/2021/09/11/125735
(Source: ok-lab's diary, published November 2021)
https://ok-lab.hatenablog.com/entry/2021/11/20/125643
Products the diary mentioned as alternatives
| Product (official name) | Price incl. tax | Relation to this topic |
|---|---|---|
| 3-hole sphincter stopper (三穴方式オプションチップ（括約筋ストッパーチップ）) | ¥1,650 (about $11 at ¥156 = $1, rate as of 2026-09-04) | In August 2021, Mr. Okada directed buyers needing only 3 holes to this option instead of the new resin stopper. |
| Resin screw-shaped auxiliary chip (スクリュー型補助チップ追加オプション（生体適合樹脂）) | ¥3,300 (about $21 at ¥156 = $1, rate as of 2026-09-04) | In August 2021, Mr. Okada preferred this part over epoxy resin for double-thread orders. |
The resin screw-shaped auxiliary chip is sold through the company's own online store.
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
The August 2021 entry announced that the previous 6-hole sphincter stopper would be discontinued.
(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823
For the combined sculpted-chip set described in July 2021: No matching product can be confirmed on the current list.
(Source: ok-lab's diary, published July 2021)
https://ok-lab.hatenablog.com/entry/2021/07/24/125923
Common worries about the Blue Chip launch
(The material contains no questions from readers.)
Buying from outside Japan
OK Lab ships internationally to countries covered by Japan Post's EMS courier service. Overseas orders are paid in advance by PayPal.
Each order carries a ¥400 (about $3 at ¥156 = $1, rate as of 2026-09-04) handling fee, and EMS shipping is charged on top. These terms come from OK Lab's official sales-terms page (written here as plain text, not a link: ok-lab.net/docs/law), checked on September 7, 2026; confirm them on the official store before you order, because they can change.
Summary of this article
| What you wanted to know | The answer |
|---|---|
| When did Blue Chips launch? | The diary records staged announcements from July through November 2021. |
| Who makes the base device? | OK Lab, a small company in Japan. |
| What does Blue Chip mean here? | The diary's name for resin bodies and related accessories. |
| What differed between releases? | Body shapes, dimensions, prices and accessories. |
| What choices did Mr. Okada offer? | Stopper formats, support material, spacing and separate component sizes. |
| Did everything arrive together? | No; the entries record separate announcements and arrivals. |
| Which prices apply today? | The product table uses tax-included prices from the September 2026 list. |
| What did customers ask about the launch? | The material contains no questions from readers. |
| Can buyers outside Japan order? | The stated terms require PayPal advance payment, handling and EMS shipping charges. |
Source: ok-lab's diary (Okada Comfortable Life Laboratory). The original entries are in Japanese; quotations on this page are translated. Photos and videos are on the original entries.
This article is a summary of the maker's development diary. The product is not a medical device and no result is guaranteed. If anything feels wrong or worries you, see a doctor. Prices, specifications and cautions change, so confirm the latest information on the official blog and the official site. Questions about ordering and shipping go to the seller.