Chromium Crusher 1.6 Inch 4 Piece Tobacco Spice Herb Grinder - Gun Metal Includes Limited Lifetime Warranty 1.6 Diameter x 1.75 Height Heavy duty and durable zinc alloy construction - Pollen Scraper Included Durable ring included designed to for an easy and fast grinding experience 4 piece, 3 chamber design - 500 micron screen for pollen filtering