This four-piece grinder is 45mm, making this petite grinder ideal for traveling on the go as it fits comfortably in the hand or pocket. Crafted with an anodized titanium coating, the 4pc Space Case Grinder Small Titanium Magnet 45mm is long lasting, protected by durable materials that will keep your grinder looking just like new. Its non-stick coating makes cleaning and working with the grinder much easier and the smooth titanium look is something competitors can not match. The diamond shape sharp shredding teeth will never dull as it grinds through the stickiest of dry herbs for years to come. The top compartment of the 4pc Space Grinder Small Titanium Magnet 45mm is where you place your herbal blend and grind it up. From there, the dry herb falls through to the lower chamber onto a screen. The screen collects any pollen or residue and makes it convenient for collecting. Additionally, the 4pc Space Case Grinder Small Titanium Magnet 45mm employs magnetic pieces that helps keep the grinder compact while in use. With all these features, the 4pc Space Case Grinder Small Titanium Magnet 45mm is a must have accessory.