Medium Santa Cruz Shredder Black 4 Piece Grinder with a Cali Crusher&reg; Pollen Press Diameter 2 1/8 inches, height 2 1/8 inches. 7 catch thread design automatically prevents cross-threading. Black anodized coating offers superior protection from scratches & wear. Deep knurled grip pattern makes it easier to twist the grinder. Cali Crusher press included in the purchase.