Cali Crusher&reg; Silver CLEAR TOP 4 Piece Herb Grinder (CC-1-Silver) Cali Crusher Clear Top Grinder. 4 piece w/ screen. Made from Heavy Duty aircraft grade billet aluminum. Stainless Steel Screen, O ring, Smooth Threads, Anodized, Neodymium Magnets. Comes with custom pollen scraper. Size Medium 2.0" Wide , Color Anodized Silver