This small domestic knock bin by Joe Frex is ideal for office and home use. It's designed to make handling and cleaning fast, efficient and enjoyable. The aluminum knock bar is covered with food grade silicone which sits firmly in place and can easily be removed for cleaning. The silicone base ring gives it exceptional stability, absorbs noise and protects your work surfaces.For the professional barista, office and home users of espresso machines it is essential to use a stable and solid knock bin for the quick disposal of coffee grounds. The quality and stability of the knock bin is important when knocking out the coffee puck from the portafilter. Joe Frex are manufacturers and suppliers of quality espresso tools and coffee equipment, their range of knock bins represents one of their specialities, and they constantly strive to develop and design innovative products.