About this item SE IT AS A STANDALONE - Pure and minimal in its silhouette, the knock box base is a countertop accessory that makes the brewing process more convenient, efficient, and cleaner, with a handy disposal unit for your pucks. COMPACT CONVENIENCE - The generous opening makes it easier to tap out used grounds without spilling and creating a mess. When it's full, it's just as easy to tip out the piled pucks into your main bin. Yet, it keeps a lean footprint to fit the smallest of worktops. EASY TO CLEAN - The knock box design does away with the traditional knock bar that can be hard to keep clean. Instead, use the central rubber silicone pad to tap out the used grounds. When you're done, a quick rinse is all you need. BUILT TO LAST - Made from thick aluminum alloy precision casting, it is extra robust and durable. Four anti-slip feet hold it steady. Featuring a black finish, the Normcore knock box is a sleek addition to all counter tops. OR TOGETHER AS A SET - The new knock box design perfectly fits the Normcore Compact Tamping Station, stacking underneath it as a base to instantly declutter busy counter spaces. Combined, the innovative design has won a US patent.