Silicone Molds, Resin Casting Molds, For UV Resin, Epoxy Resin Jewelry Making, Square, WhiteSize: about 77mm wide, 87mm long, 6.5mm thick; square: 5mm, 10mm, 15mm, 20mm, 25mm, 35mm.Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.