BEST-Birth offers education services with also selected baby items for new parents.


The information below is provided as required by Japanese law according to section 3 (Mail-Order Service) of The Act on Specified Commercial Transactions. This is an unofficial translation. As such, only the original Japanese text has legal effect. This translation is provided solely as reference material to aid in the understanding of Japanese law and regulations.

Vendor K51 Ltd.

Owner Ken Yamada
Address #401 6-13-30 Taira, Miyamae-ku, Kawasaki-shi, Kanagawa Tokyo
Contact Email:

TEL: 044-854-3653 (Japanese Only)

For English, please send us an email. Our assistant will respond shortly.
Price Tax : 5%

[ shipping cost ]
Honshu : ¥420(include tax) / Hokkaido, Shikoku, Kyushu : ¥525 (include tax)
* Okinawa and inland shipping cost is special price. So we'll contact after checking it.
If you purchase over ¥10000, shipping cost is free.

Payment to order Internet
Method of Shipping

Yamato Transport Co., Ltd.
If the requested product is in stock, we can deliver the product within next working day from the date of payment.
If you pay by bank transfer, we'll ship when payment is received and confirmed.
If it run out of stock, we can deliver within 3-7 days probably. (It affect production date.)

Time-Zone Delivery Service
You can select the time period in which you would like the package to be delivered. Should the receiver not be at home, upon request from the receiver, the package can be redelivered.

Before noon / 12:00-14:00 / 14:00-16:00/ 16:00-18:00 / 18:00-20:00 / 20:00-21:00

Method of Payment

You can select Credit card via PayPal, Cash on Delivery, Bank Transfer (Japan only).

[Cash on Delivery]
You will be charged an additional handling fee. Please pay to Yamato Transport Co.,Ltd. in cash at the time of delivery.
The additional handling fees are ¥ 315(less than 10,000 yen), ¥420 (over 10,000 yen but less than 30,000 yen or ¥ 630 (over 30,000yen).
[Credit card via PayPal]
VISA / Master / JCB / AMEX

[Bank Transfer]

Bank of Mitsubishi UFJ
Branch: Hishinuma 613
Account number : (Saving) 0015500
Account name : K51 Co., Ltd. カ)ケイファイブワン

Cancellations, Returns and Exchanges * Please confirm the contents of your order upon receipt. If by chance you do not receive the expected items, or if an item is damaged, please contact us via email within 3 days.
* Upon inspection and at our discretion, we will exchange your merchandise immediately. If an exchange is not possible, we will refund you the purchase price of the merchandise.
* We will provide instructions on the return process via email. However, please be aware that if, upon inspection, it is determined that the item is not defective, we will return the item to you.
* We will cover return costs only in the event that you contact us prior to making the return and we confirm its contents.
* For returns and exchanges, please contact us at

Please note that returns and exchanges cannot be made in the following situations.
Returns and exchanges cannot be made at the customer's convenience (if an item is the wrong size, if the color differs from that of the image, if an incorrect item was ordered, etc.)
- Items that have been used.
- If the invoice, tags, or package are not in the condition they were at the time of delivery or if anything is missing or damaged. - If items become damaged or dirty after delivery.
- If you contact us later than 3 days after delivery.
- Underwear and bathing suits.
- Sale items.