Our handsome knock box is used commonly by commercial and home baristas to “knock out” packed espresso grounds from espresso machine filters. This sleek box is made from 18/8 stainless steel, includes a removable rubber-coated bar, and sits in a heavy, non-slip rubber base. The box itself is dishwasher safe. 4-1/2″ x 4-3/4″ x 6-1/4″ H.