The Grindenstein is a compact knock box for holding used coffee granules. It has also been specifically designed to be stored on the espresso machine's drip tray, reducing clutter on your kitchen top and keeping everything in one place. The group handle is protected by a thick and durable rubber sleeve which absorbs force and sound. Non-slip base. 10.5cm Diameter, 10.5cm height (approx). Top rack dishwasher safe.