Chromium Crusher Zinc 1.6 Inch 4 Piece Tobacco Spice Herb Grinder - Pick Your Color (Purple, Aluminum) Includes Limited Lifetime Warranty 1.6 Diameter x 1.75 Height Heavy duty and durable aluminum alloy 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