Material: Premium Silicone NON-SKID BACKING - 3pcs of standard MEDIUM size silicone sheets measures 15.7 x 11.8 inches / 40 x 30 cm. A side is nonskid smooth surface (use this face down), the other side is nonstick frosted surface (use this face up). SURFACE PROTECTOR - Protect your desk countertop against water, scratches, burn, grease and keep your crafting table away from resin, epoxy, glue, glitter, paint, ink, oil, scratches etc. QUALITY MATERIAL - Made of premium silicone,heat resistant between -40F and 446F. flexible,non-skid, nonstick, waterproof, heat-resistant,non-fading, non-staining,durable enough to last long, not easy to deform or tear up,great for casting tools kit collector. MANY USAGES - Silicone craft mat for casting molds, resin jewelry casting molds mat, paper crafting, kid painting, and other arts craft projects, placemats, pot holder, coasters, dish mats, tableware, trivet, drains, heat insulated pads, dining tables, kitchen counter top protector. sticks nicely to countertop. to protect the surface. Keeps counter clean and absorbs heat. EASY TO CLEAN STORE - Washable and dry quickly,easy clean with water and dishcloth; lightweight and portable, easily be rolled out or rolled up nicely without any creases and does not take up a lot of space in a drawer.