About This Essential Barista Tool: Our espresso knock box is a must-have for every coffee enthusiast. Imagine quickly and easily disposing of used coffee grounds after each shot, keeping your countertop clean and tidy Knock box with a larger storage space: Enable you to collect a significant quantity of coffee grounds at once without producing any unpleasant smell. You don't have to run to trash bin each time when you want to make a new coffee Stable coffee grounds container: The exterior of knock box is made of thickened 304 stainless steel, which makes the whole coffee grounds bucket more stable. You don't have to worry about knocking the coffee grounds over or cracked Premium knock box: It is built to withstand repeated use. The thick rubberized bar is tough enough to handle frequent knocks without denting or warping. The detachable design facilitates effortless cleaning Humanized Design: The three-quarter wrap-around box design is to avoid coffee grounds from splashing. The tapping rod is encased in a rubber exterior, while the base is equipped with four silicone pads to minimize noise