The Breville® Knock Box™ (BCB100) is a durable and practical accessory for coffee enthusiasts. Made of metal with a silver metallic finish, this knock box features a removable, dishwasher-safe bowl for easy emptying and cleaning. Compatible with Breville espresso machines, it is suitable for use with coffee grinders, espresso makers, cappuccino machines, and other espresso machines with a porta filter handle. The Breville® Knock Box™ is a convenient addition to any home or commercial kitchen for efficiently disposing of used coffee grounds.