Are prostate chip charms only decorative? | Some also connect or secure parts [OK Prostate Chip]

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 "prostate chip charms and connectors" 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.

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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

The diary describes jewelry-shaped chips alongside parts that connect assemblies or keep a locking key attached.

Mr. Okada changed designs to address lost keys, incompatible threads, and uncertain earring strength.

Some related components appear on the current list; the custom connectors have no confirmed match.

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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.

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Before you read: key terms

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What happens: prostate chip charms and connectors

The OK Prostate Chip is a small device placed in the urethra (the urine passage) to act on the prostate. The diary's charms and connectors have different jobs, including decoration, locking, and joining parts. They include jewelry-shaped chips, a cage around an auxiliary chip inside the urethra, and connectors associated with a gatekeeper at the penis head. The later designs also serve as working components of the assemblies.

Comma-shaped prostate chip charms were proposed as jewelry in March 2019

In an entry published in March 2019, Mr. Okada proposed comma-shaped chips that could also become earrings or necklace pendants. The idea covered resin, glass, and ceramic prototypes, with different planned prices. Short versions were priced at ¥4,000 (about $26 at ¥156 = $1, rate as of 2026-09-04) in resin and ¥5,000 (about $32 at ¥156 = $1, rate as of 2026-09-04) in either glass or ceramic, all tax excluded.

Glass and ceramic semi-long versions were each planned at ¥6,000, (about $38 at ¥156 = $1, rate as of 2026-09-04) tax excluded. For other versions, the proposal added ¥2,000, (about $13 at ¥156 = $1, rate as of 2026-09-04) tax excluded, to the existing chip price. Mr. Okada suggested offering these designs as jewelry with a chain.

(Source: ok-lab's diary, published March 2019)
https://ok-lab.hatenablog.com/entry/2019/03/30/160657

An assembled chip cage carried a separate processing charge in December 2021

In an entry published in December 2021, a customer requested a small blue auxiliary chip enclosed within a cage. The requested position put the back of the cage 14 cm from the back of the main chip. The order named a resin main chip, screw-shaped auxiliary chips, and nylon thread with loops at both ends.

Mr. Okada recorded ¥3,300 (about $21 at ¥156 = $1, rate as of 2026-09-04) already paid as an adjustment for the cage assembly work. The diary does not record how this customer's cage felt in use.

(Source: ok-lab's diary, published December 2021)
https://ok-lab.hatenablog.com/entry/2021/12/04/124140

One fixed chip connector test ended after Mr. Okada felt unwell

In an entry published in July 2025, Mr. Okada described testing a petal-shaped loop with a 10 cm connecting extension. He paired it with the shape-memory gatekeeper and connector for about 3 days of continuous wear. He wrote that the fixation was so complete that his prostate seemed tired and he felt as though he had heart failure.

Mr. Okada reported stopping the test after feeling unwell. The diary does not record a medical assessment of those symptoms. Mr. Okada cautioned that the continuous pressure might be too demanding for someone in his state of health.

(Source: ok-lab's diary, published July 2025)
https://ok-lab.hatenablog.com/entry/2025/07/05/122905

A shape-memory chip connector also appeared in a tail-support prototype

In an entry published in July 2025, Mr. Okada described a larger loop-based device designed for rectal or vaginal use. His tail test used the shape-memory connector between a commercially sold tail and the prototype's external end loop. He also suggested a tied cord or commercial earring as possible alternatives for that connection.

He said a simpler single-loop version might suit tail-only use, but he had not tested it. Mr. Okada cautioned that the tail's weight might pull that untested version out.

(Source: ok-lab's diary, published July 2025)
https://ok-lab.hatenablog.com/entry/2025/07/19/122907

One custom chip connector was quoted at ¥4,400 (about $28 at ¥156 = $1, rate as of 2026-09-04) in February 2026

In an entry published in February 2026, a customer requested a custom ceramic chip with an external stopper and related accessories. That request included a shape-memory connector priced at ¥4,400 (about $28 at ¥156 = $1, rate as of 2026-09-04). The diary does not record whether this connector had the same specification as the earlier prototype. It also does not record how the connector performed for that customer.

(Source: ok-lab's diary, published February 2026)
https://ok-lab.hatenablog.com/entry/2026/02/14/121602

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The maker's answer to prostate chip charms and connectors

Mr. Okada addressed particular connection problems through attached keys, compatibility limits, and a purpose-made wire connector.

A tethered prostate chip charm addressed the risk of losing its key

In an entry published in July 2022, an illustrator suggested keeping the gatekeeper's locking key attached to prevent loss. Mr. Okada made a charm connected to the gatekeeper's cord and sent the prototype to the illustrator.

He wrote that an unlocked gatekeeper allowed position changes and could shift with changes during an erection. He also reported that it could unexpectedly project far outward. Mr. Okada therefore suggested that keeping it locked during ordinary use might be better.

(Source: ok-lab's diary, published July 2022)
https://ok-lab.hatenablog.com/entry/2022/07/23/123014

Store-bought earring connectors came with an explicit warning about possible breakage

In an entry published in July 2025, Mr. Okada wanted a detachable connection so a gatekeeper could serve different assemblies. He tried commercially sold earrings with a blue chip carrying a connecting extension. He thought the ring-shaped items were intended for earlobes and acknowledged having no knowledge of earrings.

The assortment he tried cost around ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04) for 10 pieces. He said those earrings might break. Mr. Okada therefore said he could not advise readers about commercial earrings.

(Source: ok-lab's diary, published July 2025)
https://ok-lab.hatenablog.com/entry/2025/07/05/122905

An in-house shape-memory connector was offered for concerns about commercial earrings

Mr. Okada introduced his own wire connector in an entry published in July 2025. He demonstrated it with a slim ceramic chip fitted with a connecting extension.

The specified length was about 4 cm, with a price of ¥2,000, (about $13 at ¥156 = $1, rate as of 2026-09-04) tax excluded. The prototype examples covered connections to those extensions. Mr. Okada offered this design to people concerned about commercially sold earrings.

(Source: ok-lab's diary, published July 2025)
https://ok-lab.hatenablog.com/entry/2025/07/05/122905

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How prostate chip charms and connectors changed over time

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OK Prostate Chip products related to prostate chip charms and connectors

The current list includes components from the cage cases, without confirming the complete historical custom assemblies.

Products that appear in these entries

(Source: ok-lab's diary, published December 2021)
https://ok-lab.hatenablog.com/entry/2021/12/04/124140

Products the diary mentioned as alternatives

The diary names no alternative.

The historical designs include comma-shaped prototypes, assembled cages, tethered locking charms, and the shape-memory connector. The slim ceramic test assembly, petal-loop assembly, and large tail-support prototype were also custom or experimental configurations. No matching product can be confirmed on the current list.

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Common worries about prostate chip charms and connectors

The customer exchanges concern which chip fits, whether safety parts can substitute, and how a custom order was arranged.

"Can a chip cage hold any model?"

In an entry published in August 2021, a customer asked whether a chip could go inside a cage. Mr. Okada made a prototype and said only the blue screw-shaped auxiliary chip fitted inside. The published prices were ¥3,000 (about $19 at ¥156 = $1, rate as of 2026-09-04) for the blue chip, ¥2,000 (about $13 at ¥156 = $1, rate as of 2026-09-04) for the cage, and ¥1,000 (about $6 at ¥156 = $1, rate as of 2026-09-04) for assembly, all tax excluded.

He described both manual and stainless-steel-wire retrieval as features of that design. He also said the labor limited production to fewer than one assembly a day. For the main chip at the other end, Mr. Okada allowed any type but required 2 threads.

(Source: ok-lab's diary, published August 2021)
https://ok-lab.hatenablog.com/entry/2021/08/28/125823

"Can two-thread safety parts replace a chip cage?"

In an entry published in December 2021, a customer proposed a cage with a safety chip on either side of a screw-shaped auxiliary chip. The proposed safety parts were designed for 2 threads, but Mr. Okada said a bird-containing cage needed 4 threads.

He said the two-thread parts were difficult to substitute in that construction. Mr. Okada proposed the conventional cage instead, and the customer accepted that change.

(Source: ok-lab's diary, published December 2021)
https://ok-lab.hatenablog.com/entry/2021/12/04/124140

"How did someone order a custom chip connector?"

In an entry published in August 2025, a customer could not work out how to order a custom assembly through OK Lab's own online store. They requested a ceramic chip, an adjustable connecting extension, a gatekeeper, and a shape-memory connector. OK Lab's staff gave a provisional quote that listed the connector at ¥2,200 (about $14 at ¥156 = $1, rate as of 2026-09-04).

After further questions about length, staff proposed a 10 cm section plus a 20 cm adjustable section. The customer accepted that arrangement and an L-size gatekeeper, and the entry shows the finished build. Staff favored the longer adjustable section to give more adjustment range.

(Source: ok-lab's diary, published August 2025)
https://ok-lab.hatenablog.com/entry/2025/08/02/123058

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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.

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Summary of this article

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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.