INNOVATIVE DESIGN - The design looks natural, the warm bamboo material on the surface meets the cold stainless steel structure inside. The strong contrast in design makes our products uniquely eye-catching in every kitchen and café. Transform yourself into a one-of-a-kind professional barista. HIGH QUALITY&STRONG STABILITY - The knock box is made of premium bamboo. Knock bar made of engineering grade polymers that reduces noise. Thanks to high-quality bamboo materials and four anti-slip silicone particles at the bottom of the base, which can effectively prevent slipping and abrasion of the desktop, and the pressing powder is more stable and labor-saving.Our products are more stable and robust. It’s quiet to use, near impossible to break, and dishwasher safe. PERFECT SIZE: 3.94X6.5X6.89In (L*W*H) It's perfect for most espresso machines. With enough capacity, it could prevent coffee grounds from splashing all around. The generous dimensions, square shape and the perfect distance between the silicone stick and the edge ensure a clean tapping process and no mess on the countertop. EASY TO CLEAN - Knock boxes are essential espresso accessories, and they require minimal maintenance. Due to the large openings, the knock box is very easy to clean, so you don’t need to give it much effort. To make cleaning easier, the stainless steel container inside can be easily removed and cleaned in the dishwasher. 100% Satisfactory: if our knock box did not work well, please contact KYONANO for exchange, refund, or return. Dispose of your used coffee pucks quickly and easily within inches of your espresso maker.