High Quality: Made with commercial quality stainless steel, the food grade material makes firm and durable. 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. Scope Of Use: Premium Commercial Grade Espresso Knock Box Suitable for domestic, cafe, Western Restaurant and pub.