JAP Koubou MARVEL/X-MEN Symbol Silver Ring & Choker Set. JAP Koubou / Silver 925刻印 (hallmark), from 1996. ■ Ring size: Inner diameter is approximately 20mm, so it's likely a size 22 (Japanese size). Choker size: Inner diameter is approximately 13mm. *Measured by an amateur. Some discoloration due to aging. Color: Silver Material: Silver Accessories: Comes with a dedicated case. *No other accessories. Thank you for viewing. Thank you for your consideration.