Size: Approx. 63mm Approx. US 10 1/2 JP 22 Purchased at MIC Ebisu at the time of release. The MIC drawstring bag and serial number card that were included at the time of purchase have been lost. The inside of the ring has the characters TW, MIC, and 32/100. As this is an item from an older era, we request purchases from those who understand vintage and used items. To prevent fraudulent returns, we do not accept returns or exchanges after purchase. This ring is very rare nowadays, so how about adding it to your collection? Thank you for your consideration.