Introducing the Knock Box 20 from Breville that can conveniently store up to 20 espresso pucks, for quick and easy disposal. Strike the portafilter against the knock bar for quick, easy and mess-free disposal of the coffee puck. The durable knock bar also is removable for easy cleaning of the inner vessel. The base features anti-slip rubber grip for increased stability on the benchtop. The perfect match for your espresso machine.