Espresso machine accessories: The espresso knock box for espresso machines is perfect for collecting used coffee grounds. You no longer have to go all the way through the kitchen to dump the coffee grounds into the trash can, which is very convenient. In addition, they can be transferred to your garden soil and become a great fertilizer for plants. Perfect Size: The diameter of the espresso grounds knock box is 10 cm/3.9 inches, which prevents coffee grounds from splashing everywhere, and can also hold enough coffee grounds, so you don't have to clean it often. The compact size is ideal for limited counter space, such as coffee corners in homes and offices. Easy to Clean: The sloping top surface of the coffee knock box is convenient for dumping waste, the knocking rod can be easily removed, and the inner surface is smooth. Just rinse the espresso tools with clean water. The coffee knock box can also be cleaned in the dishwasher, saving time on cleaning. Of course, if you use a garbage bag liner, there is no need to clean it. Sturdy and Durable: The espresso accessory knock box is made of high-quality ABS, and the knock rod is made of durable flexible rubber with a solid steel core. The precisely carved notches on the side of this espresso accessory hold the rubber strip firmly in place, and the coffee knock box has smooth edges to avoid scratching your hand or handle. Noise Reduction and Anti-Slip: When you hit the rubber-coated rod, it absorbs the sound, helping to reduce noise. The rubber pads on the bottom of the puck box prevent sliding on wet surfaces and help protect your countertops from marks or dents.