Premium Material: Our coffee knock box is made of selected quality ABS material, which is durable and wear resistant, no harm to health, the rubber knock bar features a good cushioning performance to protect the coffee machine handle.Proper Size: The knock box for coffee grounds designed approx. 12*10*12.7cm/4.72*3.93*5inch (L*W*H), which is perfect for storing underneath most espresso machines. With deep curved design, coffee grounds are not easy to splash.Non-Slip Base Design: Wide non-slip silicone design at the bottom of the punch box provides excellent stability, prevents sliding and wont scratch countertops.Easy to Clean: Detachable rubber knock bar makes it easy to clean. You can clean it by hand, it is also dishwasher safe, save your time on the washing the coffee tool.Wide Application: This box is widely suitable for home, cafe shop, canteen, restaurants, bars, etc., a good helper for coffee lovers.