The non-stick mat has a perforated texture, covered with food grade silicone. Since dough contains about 60-80% water, the perforatedtexture allows the water to seep through the mat, leaving a perfect crusty finish. Use for your homemade biscuits, pizza, and bread It is effective for freezing, proofing, and baking for all dough types as well as perfect for the par-baking of tarts. The mat must be usedflat and placed on a tray preferably perforated for a better circulation of the heat. To clean the mat, use a soft sponge under running water.colour:black & redMaterial:Silica gelsize:40x30cmPackage Contents:6 x Baking matOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.