letter puzzle jigsaw or letter+number oval earring pendant charm silicone mold optional. Puzzle mold:In addition to the 26 pieces letters of A-Z,also includes heart and dog bone shapes. mold silicone material,-friendly,flexible,reusable and . Non-stick,easy to separate,temperature resistant,easy to clean,-friendly,low carbon,can be recycled. Use:For Keychain,Jewelry Pendant,crafts making,etc.