【High Quality Coffee Knock Box】Made of special ABS material, it is durable, non-slip, keep clean at all times for easy cleaning.【Perfect Size】The size of the knock box is perfect to be stored under most espresso machines. The capacity is large enough that you don't have to empty it too often.【Practical and Special Design】The metal rubber bar and plastic body are able to reduce noise during use. The deeply curved design makes the coffee slag not easy to splash while the oblique mouth allows you to use more conveniently. Our rubber and metal coffee knock bar is more durable and easier to use than ordinary rubber knock bar.【Detachable Knock Bar】Our knock bar with very good tamper performance allows you to easily remove the ground coffee, can reduce noise during use. This coffee grounds container with removable bar is simple to clean. You can clean it by hand, you can also use the dishwasher.【Ideal Coffee Gift Set】Perfect espresso machine accessories for your kitchen and suitable for use