Description:_x000D_ The coffee knock box solves the extremely messy problem of removing the used grinds from your coffee machine or group handle. The knock boxes are used to knock out to the spent ground coffee out of the filter handle, so the next espresso can be prepared. Keep the mess in the box, and the flavor in the cup. The knock box should be cleaned minimum once per day or when full._x000D_ _x000D_ Features:_x000D_ _x000D_ Heavy duty stainless steel construction for professional use, which is resistant to rust and easy to clean. _x000D_ Using deep bowl design capacity is big, coffee grounds are not easy to splash. _x000D_ The size is perfect for storing underneath most espresso machines. _x000D_ Replaceable protective rubber bar has very good buffer performance, protect the coffee machine controller. _x000D_ It's the ideal accessories of household and professional coffee machine. _x000D_ _x000D_ Specification:_x000D_ Condition: 99.99% Brand _x000D_ Material: Stainless Steel_x000D_ Color: Silver_x000D_ Product Size: S, M (Optional)_x000D_ S: Approx. 17.5 x 16 x 9.5cm / 6.88 x 6.29 x 3.74inch_x000D_ L: Approx. 16 x 17.5 x 15cm / 6.29 x 6.88 x 5.90inch_x000D_ Product Weight: Approx. 437g~544g_x000D_ _x000D_ _x000D_ _x000D_ Package Included: _x000D_ 1 x Coffee Knock Box with Rubber Bar_x000D_ _x000D_ Note:_x000D_ 1. Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering._x000D_ 2. Please understand that colors may exist chromatic aberration as the different placement of pictures. 1Heavy duty stainless steel construction for professional use, which is resistant to rust and easy to clean 2Using deep bowl design capacity is big, coffee grounds are not easy to splash 3The size is perfect for storing underneath most espresso machines 4Replaceable protective rubber bar has very good buffer performance, protect the coffee machine controller 5It's the ideal accessories of household and professional coffee machine