Lekue Silicone Rolling Mat, Large Non-stick measuring baking sheet 14 x 24 sheet size, 12 x 20 labeled measuring surface Conveniently marked with graduating raised circles to help score dough Circle sizes are  5, 5.5, 6, 8, 8.5, 9.5, 10, 11, 12, 12.5 and 13 Easy to clean, rolls up for storage. In beautiful Lekue blue silicone