High Quality: The espresso accessories knock box is made of high-quality ABS, the knock bar is made of durable and flexible rubber, and contains a strong steel core. Precisely carved notches on the sides of this espresso accessories hold the rubber bar securely in place, and the coffee knock box has smooth edges to avoid scratching your handle or your hands. Easy to Clean: Beautiful appearance and is not easy to stick coffee powder, rinse the container and bar with warm water or directly put it in the dishwasher to clean, save your time cleaning coffee tools. Noise Reduction and Anti-Slip: It absorbs sound when you hit the rubber coated bar, keeping you and your family safe from noise, while the rubber pad on the bottom of the puck box prevents sliding when the surface is wet and won't leave marks or dents on your countertop. Unique Design: The knock box is designed with a deep bowl, the capacity is large enough, and the bottom has a non-slip design, which will not slip off or scratch the kitchen counter during use, and you can tap it to make the dumping cleaner. Fit for: Suitable for home, cafes, bars, restaurants, offices and other places, it can collect a lot of coffee grounds and is an ideal accessory for professional semi-automatic coffee machines.