Astronomy Theme Star & Moon Silicone Molds, Resin Casting Molds, for UV Resin, Epoxy Resin Craft MakingSize: about 55mm long, 71mm wide, 16mm thick, star inner diameter: 31x21mm, moon inner diameter: 31x32mm.Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.