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.