This fabulous standard size knockout box is constructed of durable 18/8 stainless steel and it sits inside a heavy non-slip rubber base. The removable rubber-coated bar provides the perfect surface for "knocking out" spent coffee. It provides a convenient, no fuss, no mess way to safely dispose of your coffee grinds.

Measures 4-1/2-inches by 4-3/4-inches by 6-1/4-inches tall. 
The box itself is dishwasher safe.