Heart DIY Pendant Silicone Molds, for Keychain Making, Resin Casting Molds, For UV Resin, Epoxy Resin Jewelry Making, Cornflower BlueSize: about 1.73 inch(44mm) wide, 3.50 inch(89mm) long, 0.24 inch(6mm) thick.Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.