Tovolo Silicone, Non-Stick, Pastry Prep Mat, 25x18 Inches The generous 18 x 25 inch size provides an easy work surface The printed ruler and conversions make measuring both simple and easy This mats silicone-coated fiber is tear resistant and lasts for years The nonstick material creates an ideal work surface not allowing your dough to cling to the mat This pastry mat is heat resistant up to 600 degrees Fahrenheit and is dishwasher safe