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, save your kitchen countertop space. Unique Design Knock Case: Bayonet design makes coffee slag not easy splashing while oblique mouth allows you to use more convenient. Widly Used: Espresso Dump Bin can be used at home, coffee shop, dining hall, restaurants, and more. Easy Processing: Dispose of your used coffee grounds quickly and easily within inches of your espresso maker. You can store old coffee grounds for gardening. Espresso knock case give you ample storage space for holding the rests coffee grounds so that you can later transfer them to a compost bin. Detachable Knock Rod: Rubber can be removed from its holder for emptying and cleaning,The rod comes out easily for fast cleaning. Size Chart: Style A:10cmx10.2cm/3.94inchx4.02inch Style B: 10cmx12.7cm/3.94inchx5.00inch Package Includes: 1Espresso Dump Bin Note: Please allow slightly errors due to manual measurement and different monitors.