3-Second Bag Swap: Our for espresso knock box features a triple-layer design for quick detachment of the coffee grounds bag. Effortlessly remove the upper section to access the full bag, streamlining your coffee routine with minimal cleanup. High-Capacity Design: Made from thickened ABS material, our 4L knock box holds up to 20 espresso pucks. It's an indispensable accessory for coffee enthusiasts, perfect for home use or while entertaining guests. Splash-Proof & Wide Opening: The widened top and deep arch of our knock box a clean, splash-free workspace. Its ergonomic design allows for lower strike points, making it easier and more comfortable to use. Quiet Operation: Featuring a rubber-coated knock bar, our box reduces noise by up to 60%. The stable, non-slip base keeps in place, ensuring efficient puck disposal with a simple knock, ideal for both busy cafes and home use. Space-Saving & Versatile: With a compact diameter of 8.46 inches, our knock box fits neatly beside your coffee machine. It's suitable for collecting coffee pucks, tea leaves, and other waste, making it a versatile addition to any coffee bar. Color:Black Material:plastic Package Contents: 1 * Coffee Knock Box 2 * Mop Cloth Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.