About This Patent Design White Knockbox: Unique slanted mouth design, the slanted top helps trap grounds stay cleaner around your espresso machine; When you knock the portafilter, it doesn’t splash coffee grounds everywhere like others - made cleanup easier and makes the espresso routine feel more professional Larger Storage Space: Collect a significant quantity of coffee grounds (up to 20 pucks) at once in this coffee grounds knock box without unpleasant odors. No need to run to the trash bin after every shot – perfect for home espresso machine accessories and busy brewing sessions Premium Materials for Ultra-quiet: The stable coffee grounds container is made of thickened steel, never worry about tipping over or cracking, even with frequent use, and the silicone-wrapped knocking bar and non-slip base pad minimize noise Perfect Size: 5.31 x 5.9 inches round style knock box - good size and it won't take up too much space on the counter. Designed to withstand repeated daily use, featuring a thick rubberized knock bar that resists denting or warping. A must-have barista tool for every coffee enthusiast Easy to Clean & Maintain: Wash by hand or in a dishwasher. The removable design makes this coffee puck knock box incredibly easy to clean – a reliable espresso tool and barista accessory, keeping your countertop clean, tidy, and free from mess during your espresso routine