Mixed Shape Pendant & Links Silicone Molds, Resin Casting Molds, For DIY UV Resin, Epoxy Resin Earring Jewelry Making, WhiteSize: about 95mm wide, 124mm long, 4mm thick; Inner Diameter: star: 34x41mm; round: 16mm in diameter; square: 15x15mm; heart: 34x39mm; rectangle: 30.5x40mm.Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.