This single-sided type of grater is for creating a pulp or paste from fruits and vegetables (ginger, horseradish, etc.), and not to be used as a microplane or cheese grater. Each piece has a copper core and a stainless steel cladding, and is delicately crafted by hand, right down to the hammering of the grates. Designed and produced by Ooya Seisakusho. 3.75" x 3"