Heavy-duty grinder for an effortless medium-to fine grind every time Triangular Shaped Teeth made from durable, aircraft grade aluminum Deeper Chambers on all four pieces allows this grinder to double as herb storage Unique safety Features such as the Easy open & quarter-turn locking function & magnetic lid Bottom piece is interchangeable with ONGROK storage pucks Bonus brush & guitar pick scoop Product Description UNIQUE EASY OPEN/LOCKING FUNCTION | The ONGROK 4 Piece Grinder uses a quarter turn locking function, so it's easy to open and access your herbs. Don't worry about the main compartment of your metal grinder getting stuck. REMOVABLE SCREEN FOR EASY CLEANING | This large, handheld grinder contains a removable screen for easy cleaning. To remove the screen, just lift the handle and turn counter-clockwise. Use the 'catch chamber' as a storage compartment for on-the-go! THIS HEAVY DUTY GRINDER PRODUCES THE PERFECT GRIND | This metal herb crusher is crafted out of solid, aircraft grade aluminium. Inside of the aesthetic finish, this grinder uses 33 triangular shaped teeth, to provide a medium-to-fine grind, every time. This is a reliable spice and herb grinder that you can count on.