Compact espresso tapping subject for crushing espresso grounds It is terribly stable and durable, or even plugs into the drip tray of your espresso mechanical device Perfect ergonomic design permits you to knock on the door smoothly Place espresso grounds within the knock box and maintain the work subject clear Suitable for families, cafes, western restaurants, bars and different areas that intend to make coffee. Colour:Black Material:metal Size:About 18x16 Package Contents: 1* Bottomless knocking box Only the above package content, different merchandise will not be included. Note: Light taking pictures and various displays can cause the color of the item within the picture a little bit different from the genuine thing. The size allowed error is +/- 1-3cm.