eBay

It was made of heavy gauge stainless steel , sturdy and well made , You can tell the quality when you pick it up. Pretty enough to leave out on your counter.
The bottom has a round rubber anti-slide disc that keeps it firmly in place. So as you’re knocking out your used grinds, there is no chance of sliding.Also can reduce the noise when knocking the coffee pucks
The diameter size of this knock box is 5.55 inch, maximum height is 5.7 inch , Minimum height is 4.44 inch , can hold about 28pcs coffee pucks .


Curved Design The higher back can prevent the powder from splashing around and keep the table clean	Removable Design Removable knock bar, easier to clean the coffee grounds knock box	Anti-slip Rubber Bottom Design There will be no sliding when you knock out the used coffee powder. It can also reduce the noise when tapping coffee balls