About inventory
Last-minute orders
If you place an order just before the item runs out of stock, and there are overlapping orders placed by other customers at roughly the same time, your order may be completed even if the item is out of stock. Please note that in such cases, shipping may be delayed.
Inventory replenishment
Products are replenished regularly, so if they are out of stock please wait a few days.
Warranty Information
Warranty period
We offer a 90-day free repair guarantee from the date of purchase.
Not covered by warranty
The warranty does not cover failures or damage caused by excessive loads, improper use, or modifications.
Button warranty
Regarding buttons, only initial defects are covered by the warranty.
For first-time users
Usage Guide
Detailed rules regarding returns, exchanges, cancellations, etc. are listed in the User Guide.
If you are using this service for the first time, please be sure to read the instructions for use.