About This Beautiful and Functional: This handcrafted knock box is made of premium acacia wood with a beautiful natural wood grain. Classic and neat, simple to use. Great for yourself or as a gift for an espresso lover. Extra Silent Knock Bar: The knock bar of this espresso knock box is well-padded with ITL engineering-grade rubber to reduce disruptive noise. No more worrying about waking up the family in the morning. Just the Right Size: The overall size of the espresso machine accessories is 7.3x6.9x4 inches. Large enough to hold a lot of espresso pucks, yet small enough not to take up too much space. Quick, easy and mess-free disposal of the coffee puck. Non-slip Base: The knock box for espresso coffee grounds features 4 non-slip rubber feet on the bottom to stabilize the knockbox and reduce noise. Prevents sliding and wearing of your kitchen countertops. Easy to Clean: The stainless steel coffee knock box is freely removable so you can easily clean it by hand or in the dishwasher. As for the acacia wood box, simply wipe it with a soft cloth with warm soapy water. Wipe dry with a soft dry cloth or air dry.