1Excellent Material: This knock chute is made of premium stainless steel and rubber, strong and durable, can reduce the friction with the table top, protect the table from abrasion and reduce the noise. 2Usage: Rectangle bottomless design, after installing this chute, matching a trash can under table, the coffee grounds can be smoothly poured into the trash can, which can dispose of the trash more quickly. 3Detachable Rubber Rod: The knock bar is wrapped with rubber, which has great cushioning performance, will not dent or scratch your filter element. 4Easy To Clean: Rinse this knocking slag bucket with water directly, then use a rag to dry, no need for other maintenance methods, convenient to wash. 5Applications: Can be use in coffee house, home kitchen, office and the other occasion. Not only a special tool for processing coffee grounds, but also a great helper for processing food waste.