DIY Silicone Bookmark Molds, Pendant Molds, Resin Casting Molds, WhaleSize: about 71mm wide, 158mm long, 5mm thick, Hole: 2.8mm, inner diameter: 151x35mm and 86x35.5mm and 61.5x35.5mm.Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.