Make of thick stainless steels plate, resistant, rustproof, Enduring and easy to clean. Detachable drawer type, easy to pulls out, convenient for pouring coffee grounds and dead corners and dirt. The left and right side and holes is for easily heat dissipation. There is six nonslip feet on the bottom to the coffee Knocks box from moving during use, reducing the noise when knocking. Can place under grinder and most type of coffee machines, saving desktop space, and please matchs according to the size of the coffee machine you need.