3 Year AA Medallion & One Day At A Time Universe Chip In Removable Gold Plated Keychain Holder 3 Year AA Medallion with Keychain Chip Holder And One Day At A Time Universe Medallion Keychain is 18k Gold Plated with bezel that unscrews allowing you to replace the medallion with another 33mm coin. Comes with a 3 Year AA Medallion and One Day At A Time Universe Sun Moon / Serenity Prayer coin. You can change out the coins as you want or insert new medallions you receive. Excellent 3rd year of sobriety gift.