1Prevents Spills: The stainless steel coffee knock box is suitable for most coffee machines. If the capacity is large enough, it can prevent coffee grounds from spilling everywhere. 2Versatile: The coffee grounds knock box is suitable for cafes, western restaurants, bars, home kitchens and more. It is a must have for every coffee lover. 3Convenient and Practical: The coffee knock box provides you with plenty of storage space for leftover coffee grounds, disposing of your coffee grounds quickly. 4Easy to Clean: Coffee knockout box is hand washable, dishwasher safe and time saving. The old coffee grounds can be used for gardening and become a rich fertilizer for your garden. 5Compact Design: Coffee knock box is compact and helps you make full use of the space in your daily life, such as dining table corner, cafe, kitchen, baking room, tea room, etc.