Simply depress and roll the Ateco Dough Docker (also called a Roller Docker) over dough to minimize rising. Dough Docker is 5-Inch wide and made of high impact plastic. Since 1905, Ateco has manufactured tools to help professionals as well as enthusiasts create extraordinary looking cakes, cookies and pastries. Ateco products begin with the finest materials, from metals to fabrics to plastic films and undergo testing for durability, reliability, and quality. They are made to last under the punishing conditions of restaurant and high-output commercial kitchens. Happy baking! Happy decorating!