About this item 【Large Capacity Design】 6.3-Inch Espresso Knock Box with XL Storage Space - Holds Coffee Grounds and Tamped Pucks for 5-7 Days. Ideal for High-Volume Use in Home Kitchens, Offices, and Coffee Shops. 【Durable Construction】 Thick ABS Material with Steel-Reinforced Rubber Bar - Flexible Knock Bar Protects Portafilters and Reduces Noise During Use. 【Stable Non-Slip Base】 360° Silicone Base with Shock-Absorbing Design - Securely Grips Countertops (Marble/Granite/Wood) and Prevents Scratches. 【Easy Cleaning System】 Removable Knock Bar and Smooth Interior - Quick Emptying and Dishwasher-Safe for Hassle-Free Maintenance. 【Compact & Compatible】 Space-Saving Size Fits Under Most Espresso Machines - Essential Coffee Accessory for Home Baristas and Cafés.