| Seller |
Math Art Museum (Masaki Kato) |
| Representative |
Masaki Kato |
| Address |
Disclosed upon request without delay |
| Phone |
Disclosed upon request without delay |
| Email |
masakikatosushiki@gmail.com |
| Support hours |
Weekdays 10:00–18:00 JST (excluding weekends and holidays) |
| Prices |
As displayed on each product page (tax included) |
| Shipping fees |
Domestic (Japan): ¥3,000 / International: ¥5,000 |
| Additional fees |
None |
| Delivery time |
Ships within 3–5 business days. Domestic orders delivered by Yamato Transport. International orders typically arrive within 7–14 business days. |
| Payment methods |
Credit cards, Apple Pay, Google Pay, and more |
| Payment timing |
Charged at the time of purchase |
| Return period |
Within 7 days of delivery (damage in transit only) |
| Refund policy |
Due to the nature of the works, returns for customer convenience cannot be accepted. Damage in transit will be handled by exchange. |
| Return shipping |
Return shipping for transit damage is covered by the seller. |