Ongronk 2 Piece Magnetic Grinder (50 mm)UNIQUE MAGNETIC LOCKING FUNCTION The ONGROK 2 Piece Grinder uses a neodymium magnet which keeps the lid securely in place, so it's easy to open and access your herbs. 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. USE