DURABLE AND STURDY - Made with commercial quality stainless steel, the knock box is made for hard knocks. It can hold a medium volume of pucks with its 6.3 x 6.89 x 3.7 inch size and can be used on top of or recessed into a counter EASY TO CLEAN - A lip around the edge of the box allows you to sink the box into a counter top or espresso bar. Keep your counter area clean with this durable stainless steel knock box for dispensing all your spent espresso shots STURDY BAR - A hard knock bar covered in rubber provides a sturdy surface to knock against while the rubber protects your portafilter DUMP YOUR ESPRESSO GROUNDS - This knock box will not only clean up your messes but makes room for you to make those extra espresso shots you may need to knock out on those highly caffeinated days SCOPE OF USE - Widely used in coffee shop, western restaurant, bar, home kitchen, etc