American Metalcraft (DD5275) Heavy Duty Half-Size Roller Docker Heavy duty half-size roller docker is a metal pin dough docker expertly Dough dockers are tools used by bakers to help eliminate any possible air pockets that might build up from kneading dough A dough docker prior baking significantly reduces the formation of bubbles This dough docker features 3/8-inch, stainless steel pins for thorough, everyday use and a durable, solid aluminum handle Measures 2-3/4-inch width by 1-3/4-inch diameter