Gallbladder Keychain By I Heart Guts This lil gall will gladly accompany you on those late night fatty fast food runs. Engraved back of keychain and display read: "Gallbladder: Gall of the Wild" Learn all about your digestive buddy on informative cardboard backing. Zinc alloy with soft enamel, gallbladder measures 1 3/4" x 1 7/8". I Heart Guts puts a smile on your face and smarts in your brain.