AEROSPACED 5 Piece Grinders / Sifters (Double Screen) You won’t find a higher quality grinder anywhere in this price range. We custom engineered this Anodized Aerospaced Grinder to the highest standards. The diameter of the holes are also larger than average to help prevent clogging. Smooth operation and incredibly strong double magnets create a virtually air tight seal. Features 2" 5 Piece Grinder / Sifter Razor Sharp Teeth Magnetic Lid 2 Screens Includes Pouch & Scraper.