The Bulldog Metal 4Part Grinder has diamond shaped teeth for a smooth grind and has a stash compartment. The grinder has a matt metal finish with a full size detailed engraved The Bulldog head (copyright) on the lid. The Bulldog Metal 4Part Grinder is 50mm in diameter. It is a lightweight grinder with magnetic closure. Pyramid shaped teeth effortlessly shred and grind your material into the desired texture.