Made of premium silicone and glass fiber; Stain-proof,stick-resistant,This mat is made of reinforced fiberglass and food grade silicone.baking mat will never tarnish or discolor; Meticulously designed to serve you for years and years or even more; a must-have accessory for any kitchen. The Baking Sheet Liner is the bottom of mesh design. It is strongly adhesive to countertop or other surfaces, no worry to slide away. When you place the mat on a countertop or any other surface, it won't move or bunch when you push out the dough. Will keep your worktop clean. Large kneading mat no more scrapping dough or fondant off the worktop,Repeated use and cleaning cycles do not affect the non-stick properties of the pad.It can be stored rolled up or folded, occupying minimal space in a drawer or cupboard.