zeroHero Multi Function Walnut Knock Box StationTidy your home coffee set up and speed up your workflow with the zeroHero Multi Function Walnut Knock Box Station. An elegant, all in one station for tamping, distributing, knocking and tool storage. The removable, embedded storage tray lifts out for easy cleaning, while the 1. 3 L knock box holds up to ~20 pucks, so you have to empty less often. The portafilter holder has an adjustable stand to ensure that all portafilters can sit perfectly level for