Heart DIY Silicone Keychain Accessory Molds, Resin Casting Molds, for UV Resin, Epoxy Resin Craft Making, WhiteSize: about 56mm long, 136mm wide, 16mm thick, inner diameter 1: 51x39mm, inner diameter 2: 38x63mm, inner diameter 3: 45x49mm, hole: 2.5mm.