This dough Roller Docker is made of high quality material, heavy-duty, sturdy, and well made. Nice substantial wooden handle with stainless steel pins. Very easy to use,when the docker wheel rolls smoothly to perforate your dough,you will find baking is so fun. Pins are made of food grade stainless steel material, smooth surface, not easy to stick to the dough, they creat small holes in dough to prevent it from blistering and rising in large. Creating small vents in dough to prevent it from blistering and rising in large, uneven pockets during baking.