The Budan Knock Box is a must-have in your espresso corner. With features like an anti-slip base, dump bin and durability, the knock box makes your espresso-making journey super smooth. Anti-Slip Base: Can knock your portafilter on the box without having to worry about losing grip Durability: Made from high-quality plastic,, the knock box is of high quality and is durable Protective Rubber Gear: The protective rubber gear on the bar makes it efficient while protecting your portafilter during the process Generous Holding Capacity: With a large space, the knock box has a generous holding capacity