The Premium 4-Piece EZ Grinder. A heavy-duty grinder for an effortless medium to fine-grind every time. Triangular teeth crafted from aircraft-grade, durable aluminum. Deep chambers on all pieces allow grinder to function as herb storage. Contains features such as a convenient quarter-turn function for locking and a magnetic lid. The bottom piece can be exchanged with Ongrok storage pucks. Comes with a guitar pick scoop & brush.