Large Santa Cruz Shredder Black Aluminum 4 Piece Grinder Black anodized coating offers superior protection from scratches &amp; wear. Dimensions: Diameter - 2 3/4", Height - 2" 7-Catch&quot; thread design automatically prevents cross-threading. All Santa Cruz Shredders are covered by a lifetime warranty. Deep Knurled Grip Pattern makes it easier to twist the grinder.