Moon Shape Floating Shelf DIY Silhouette Silicone Molds Kit, Storage Molds, Resin Casting Molds, Cat ShapeSize: about Flat Round Mold: 257x6mm, hole: 20x5mm & 16x14mm, 1pc; Moon Mold: 250x210x5.5mm, Hole: 5x10mm, 1pc; Rectangle Mold: 77x180x6mm, 2pcs; Rectangle Mold: 77x255x5.5mm, 1pc. Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.