Superior Material: The espresso coffee knock box is made of ABS material, which is environmentally friendly and durable. Non-Slip Design: The bottom of the coffee ground knock box features a silicone pad for non-slip stability during use. The compact design allows it to fit neatly on an espresso machine's drip tray. Detachable Knocking Bar: The central rod is constructed with a metal core coated in ABS material. It is removable and easy to clean. Dishwasher Safe: The coffee grounds bin is dishwasher safe, making cleanup quick and convenient. Versatile Use: Collected coffee grounds can be used for deodorizing, creating facial masks, or as natural fertilizer. This practical coffee accessory also makes a thoughtful gift for coffee lovers.