Can I cancel my order? | The diary offers cancellation before shipment, with conditions [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 "cancellation and refunds before shipment" 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 June 2023 reply offered cancellation and refunds before shipment, while refusing returns and refunds afterward.

The maker also offered refunds when production stopped or customers needed time to reconsider.

The latest entry, June 2026, says payment starts production and order changes generally cannot be accepted.

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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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: order cancellation and refunds

The OK Prostate Chip is a device placed in the urethra, the urine passage, to act on the prostate. Order cancellation concerns stopping the purchase of that device or related parts when a buyer has doubts or the maker cannot complete the work. The entries describe concerns about dimensions, support, test reports, and interrupted production. They distinguish stopping an order from changing its specifications after payment.

An order refund was offered when handmade production could not deliver

In an entry published in October 2017, Mr. Okada described making the chips himself without a mass-production system. He expected shipment about 10 days after ordering, but warned that orders exceeding his production capacity could cause delays. He described roughly 5 chips per day as a good production result.

The entry discussed preparations for sales starting in November, with blog updates pausing while he concentrated on manufacturing. Mr. Okada offered a refund if personal circumstances meant an accepted order could not be shipped.

(Source: ok-lab's diary, published October 2017)
https://ok-lab.hatenablog.com/entry/20171028/1509164809

Order cancellation was offered after custom chips came out too long

In an entry published in September 2018, a customer requested custom chips (chips made to requested dimensions) with changes to length and shape. Mr. Okada wrote that the first and second pieces came out longer than requested. He added a third piece at the requested length, but with smaller bulges.

The diary does not record whether the customer accepted those pieces or cancelled. No matching product can be confirmed on the current list. Mr. Okada told the customer that cancellation was acceptable if the finished chips seemed too long.

(Source: ok-lab's diary, published September 2018)
https://ok-lab.hatenablog.com/entry/20180929/1538197876

A troubled electrode trial explains the concern behind order cancellation

In May 2019's published entry, a tester reported bleeding after an unsuccessful first attempt with a wired electrode chip (for electrical stimulation). Later, placement succeeded, but stimulation was felt only at the external pad (the skin-contact part for electrical stimulation), not the urethral chip. The customer requested changes to an earlier prototype; Mr. Okada instead made another urethral chip.

No matching product can be confirmed on the current list. The diary does not record whether the additional chip resolved the lack of sensation. Mr. Okada asked the customer for further feedback.

(Source: ok-lab's diary, published May 2019)
https://ok-lab.hatenablog.com/entry/2019/05/04/162111

The maker offered order cancellation while questioning further electrode testing

In the same entry published in May 2019, Mr. Okada separately described testing an electrode chip himself. He reported an irregular heartbeat around control setting 2, followed by about 2 hours when he could not work.

At that time, Mr. Okada concluded that he could not personally test electrodes again for the rest of his life. He questioned whether he could turn something he could not test into a product. His message to electrode-chip buyers unsettled by the published customer report was that they could cancel their orders.

(Source: ok-lab's diary, published May 2019)
https://ok-lab.hatenablog.com/entry/2019/05/04/162111

A planned surgical break included an order refund for unfinished work

In an entry published in June 2020, Mr. Okada said he expected to undergo heart surgery within several months. He planned to suspend order acceptance 3 weeks before the scheduled operation and complete deliveries beforehand. Until that cutoff, he intended to continue making customers' orders as usual.

Mr. Okada hoped treatment would eventually allow him to test electrode chips again. The diary does not record whether those tests resumed. He said customers would receive refunds if their products could not be completed before surgery.

(Source: ok-lab's diary, published June 2020)
https://ok-lab.hatenablog.com/entry/2020/06/20/125330

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The maker's answer to order cancellation and refunds

The diary describes cancellation for unsuitable custom work, a pause for reconsideration, and refunds when the maker cannot continue.

Order cancellation also covered a separate customer's completed white twisted chips

Another paragraph in the entry published in September 2018 concerns a different customer requesting a white, twisted chip based on an earlier design. Mr. Okada recorded two finished pieces for that request, separate from the oversized builds discussed above.

The diary does not record whether this customer proceeded with the purchase. No matching product can be confirmed on the current list. Mr. Okada again offered order cancellation if the completed pieces seemed too long.

(Source: ok-lab's diary, published September 2018)
https://ok-lab.hatenablog.com/entry/20180929/1538197876

An order refund was available while support parts were reconsidered before production

In an entry published in December 2023, a customer asked whether additional support parts were needed for newly ordered chips. The order included a longer resin chip at ¥8,800 (about $56 at ¥156 = $1, rate as of 2026-09-04) and a double-twist ceramic chip at ¥6,600 (about $42 at ¥156 = $1, rate as of 2026-09-04), as published that month. Staff paused production and offered a refund while the customer assessed a screw-shaped support chip (an extra retaining part).

The customer later clarified that the reported discomfort concerned placement, rather than how the existing assembly felt once in place. Mr. Okada said his own experience could not determine what would suit that customer. Staff suggested reconsidering the purchase after assessing the support part's suitability.

(Source: ok-lab's diary, published December 2023)
https://ok-lab.hatenablog.com/entry/2023/12/23/122035

An order refund remained the stated response to sudden hospitalization

In an entry published in February 2026, Mr. Okada described uncertainty about his health and his ability to continue working. He said sudden hospitalization could occur even after he had accepted custom work.

The passage gives a contingency for interrupted production, without recording a particular customer's completed refund. Mr. Okada said he would handle such a situation through a refund.

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

If you see blood in your urine, even a small amount or for the first time, do not wait and see. See a urologist right away. If you suddenly cannot urinate, or the device cannot be removed, do not try to fix it yourself. Go to a medical facility, including emergency care, immediately.

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How order cancellation and refunds changed over time

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OK Prostate Chip products related to order cancellation and refunds

No current product is directly tied to this topic.

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Common worries about order cancellation and refunds

The correspondence connects cancellation decisions with limited support, uncertain dimensions, and questions remaining after an order.

"Can I get emergency telephone support before deciding on order cancellation?"

In an entry published in June 2023, a customer who had already paid asked for telephone support, including an emergency contact number. Staff described email as the normal channel, usually answered within 24 hours, and said there was no emergency telephone service. They offered cancellation and a refund before shipment, while stating that returns and refunds were unavailable after shipment.

The customer later said they did not want to cancel, provided support remained available after purchase. Mr. Okada required acceptance of accident-support limits and personal responsibility before shipment; the diary does not record whether shipping followed. He advised against purchasing if the company's support arrangements left the customer uneasy.

(Source: ok-lab's diary, published June 2023)
https://ok-lab.hatenablog.com/entry/2023/06/24/123110

"Can I change my order to a smaller electrode chip?"

An entry published in October 2024 concerned an electrode order from a customer whose limit was a 3 mm-thick medium semi-long chip. The electrode was 5–6 mm thick and about 15 mm longer; Mr. Okada said it could not fit that customer's stated limit. Staff acknowledged their oversight, clarifying 5.5–6 mm thickness, minimum 7 mm width, and frequent slight oversizing because the chips were handmade.

The customer first requested 7.5 mm width, then 50 mm length and 7 mm width; Mr. Okada completed the remake. No matching product can be confirmed on the current list. During the exchange, staff urged reconsideration because fit was not guaranteed, offering cancellation of the entire order as well as a remake.

(Source: ok-lab's diary, published October 2024)
https://ok-lab.hatenablog.com/entry/2024/10/19/122847

"Can I change my order while questions remain unresolved?"

In an entry published in June 2026, a customer asked detailed questions about support-chip spacing, flexibility, and possible difficulty removing the finished assembly. Staff could not answer the increasingly complex questions and offered cancellation while awaiting the maker's response. Mr. Okada said he could not judge suitable dimensions for an individual customer.

He explained that payment normally starts actual production, so changes to the order are generally not accepted afterward. The diary does not record whether this customer cancelled or received the order. Mr. Okada asked customers with unresolved questions to postpone payment until the order details were settled.

(Source: ok-lab's diary, published June 2026)
https://ok-lab.hatenablog.com/entry/2026/06/06/122905

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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.