Welcome to the store! 1、Heavy duty stainless steel construction for professional use, which is resistant to rust and easy to clean 2、Using deep bowl design capacity is large, coffee grounds are not easy to splash 3、The size is perfect for storage under most espresso machines 4、Replaceable protective rubber bar has very good buffer performance, protect the coffee machine controls 5、It is the ideal accessories for household and professional coffee machine The coffee knock box solves the extremely messy problem of removing the used grounds from your coffee machine or group handle. The knock boxes are used to knock out the used ground coffee from the filter handle, so that the next espresso can be prepared. Keep the mess in the box and the flavor in the cup. The knock box should be cleaned at least once a day or when it is full. Features: Heavy duty stainless steel construction for professional use, which is resistant to rust and easy to clean. The deep bowl design capacity is large, coffee grounds are not easy to splash. The size is perfect for storage under most espresso machines. Replaceable protective rubber bar has very good buffer performance, protect the coffee machine controls. It is the ideal accessories for household and professional coffee machine. Specification: Material: Stainless steel Color: Silver Product Size: S, M (optional) S: Approx. 17.5 x 16 x 9.5 cm / 6.88 x 6.29 x 3.74 inches L: Approx. 16 x 17.5 x 15 cm / 6.29 x 6.88 x 5.90 inches Product Weight: Approx. 437g~544g Package Includes: 1 x Coffee Knock Box with Rubber Bar Note: 1. Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering. 2. Please understand that colors may exist chromatic aberration as different placement of pictures. 3. Please note that the new type and the old type of this product will be sent randomly, and make sure you do not mind before ordering.