Rainbow 4-Part Metal Herb Grinder 2 inch (Generic)

A four-part metal grinder measuring two inches across, so a little over five centimetres. Four parts means grinding chamber, catch chamber, a screen and a pollen compartment below it — if you have no use for the screen, a two-part design wastes less material in the threading. The iridescent finish the trade calls a Disco Mill is styling and says nothing about how it grinds. The record deliberately carries no manufacturer brand: grinders of this build are sold under house names by several suppliers.