Perfect Mini Knock Case: This espresso knock case is big enough to hold a decent amount of coffee pucks and the size is perfect for storing underneath most espresso machines, saving valuable kitchen countertop space. Unique Design Knock Case: Bayonet design helps prevent coffee puck splashing, while the angled opening allows for convenient use. Widely Used: Espresso dump bin can be used at home, coffee shops, dining halls, restaurants, and more. Easy Processing: Dispose of used coffee grounds quickly and easily within inches of your espresso maker. Store old coffee grounds for gardening. The espresso knock case provides ample storage space for holding spent coffee grounds so you can later transfer them to a compost bin. Detachable Knock Rod: Rubber component can be removed from its holder for emptying and cleaning. The rod comes out easily for fast cleaning. Size Chart: Style A: 10cm x 10.2cm / 3.94 inch x 4.02 inch Style B: 10cm x 12.7cm / 3.94 inch x 5.00 inch Package Includes: 1 x Espresso Dump Bin Note: Please allow slight variations due to manual measurement and differences in display monitors.