Description: Description: Made of stainless steel and surface paint for protection, the special coating around the aluminum bar is made from high quality silicone and will absorb most of the shock. Mini size is perfect for storing underneath most for espresso machines. The capacity is large enough that you don't have to empty it too often. Our knock bar made of hard rubber and aluminum, fashionable and beautiful appearance, rubber bar are able to reduce the noise when using, detachable design makes it easy to clean. Widely used at home, cafe shop, for canteen, restaurants, bars and more. Affordable and reliable product for you, it is also a good perfect gift for coffee lovers. For the professional barista as well as home users of for espresso machines it is essential to use a stable and solid knock box for the quick disposal of for espresso grounds. Specification: Material: Stainless Steel+Others Size Chart: S: 11x11cm/4.33x4.33 inch L: 14x15cm/5.51x5.91 inch Package Includes: 1 Piece Coffee Knock Box Note: Color might be slightly different due to the color for calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. Specifications: Material: Stainless Steel+Others Size: S: 11x11cm/4.33x4.33 inch L: 14x15cm/5.51x5.91 inch Note: Color might be slightly different due to the color for calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. Package included: 1 Piece Coffee Knock Box