Chromium Crusher 2.2 Inch 4 Piece Tobacco Spice Herb Grinder - Pick Your Grinder (C. Black Aluminum) Includes Limited Lifetime Warranty 2.2" Diameter x 1.75" Height Heavy duty and durable aluminum construction - Pollen Scraper Included Durable ring included designed to for an easy and fast grinding experience 4 piece, 3 chamber design - Mesh screen for fine pollen filtering