Heart DIY Food Grade Silicone Molds, Resin Casting Molds, For UV Resin, Epoxy Resin Jewelry Making, WhiteSize: about 1.18 inch(30mm) in diameter, 0.31 inch(8mm) thick, inner diameter: 0.87x0.55 inch(22x14mm).Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.