Premium quality 2 Year AA Medallion in Reflex White Glow In The Dark color and Gold Plated design. Serenity Prayer on the back and with recessed colored lettering around the rim. 1 5/16" Diameter and 3mm thick for a better "weight" and "feel". Comes with a vinyl protector envelope. Gift the gift of art. If you need a keychain holder search Amazon for B01GLOWDJY which is the ASIN for the holder that works with this item. Additional Details ------------------------------ Product description: Premium quality 2 Year AA Medallion in Reflex White Glow In The Dark color and Gold Plated design. Serenity Prayer on the back and with recessed colored lettering around the rim. 1 5/16" Diameter and 3mm thick for a better "weight" and "feel". Comes with a vinyl protector envelope. Gift the gift of art. If you need a keychain holder search Amazon for B01GLOWDJY which is the ASIN for the holder that works with this item.