Ideal coffeetamper for all espresso machine 1) Material: -- Base: 6061 aluminum or food grad 304 stainless steel ; -- Handle: 6061 aluminum; 2) Dimensions: 48 - 58mm diameter bases; 3) Base shapes : Flat ,US curve or Euro curve; 4) coffee tamper surface treatment of the handle: powder coated , color anodiazed coated , polished; 5) Every coffeetamper come with our distinctivegift boxfor protection and presentation