If you are buying this grinder to work with you Stashtray, you will want to purchase the Round Magnet to allow it to stick to your tray. Made of Aircraft Grade Aluminum - 4 Pieces Anodized color coating, ensuring scratch protection Grinding compartment has flared teeth for a fluffy & fine grind Storage area is the perfect size for the daily smoker Pollen screen has larger holes to gather pollen quickly Lower pollen catcher section features a handy scraper Measurements: 55mm wide by 48mm tall Simply put: The best looking & most functional grinder you have ever owned. It just works, and looks classy on your coffee table.