Grind Master - Tobacco Herb Grinder 4-piece Aluminium with Pollen Catcher Weed Crusher 100% Authentic Grind Master Brand Grinder. 4 piece with Pollen Catcher Made From Heavy Duty Aircraft Aluminum Stainless Steel Screen, O ring, Smooth Threads, Anodized, Neodymium Strong Magnets. Pollen Scrapper Included, Size 2" Wide , Color Anodized Black Lifetime Guarantee