Triangular teeth crafted from aircraft grade, durable aluminum Deep chambers on all pieces allows grinder to function as herb storage Contains features such as a convenient quarter-turn function for locking, as well as a magenetic lead. Heavy-duty grinder for an effortless medium-to fine grind every time 4 Piece EZ Grinder Triangular teeth crafted from aircraft grade, durable aluminum Deep chambers on all pieces allows grinder to function as herb storage Contains features such as a convenient quarter-turn function for locking, as well as a magenetic lead Bottom piece can be exchanged with ONGROK storage pucks Comes with a guitar pick scoop & brush