Pax 3-Piece Magnetic Herbal Grinder - BlackPAX HERBAL GRINDER WHAT AM I? This is a rather large 3 piece grinder that contains no threading of any sort, with all levels held together via strong magnets. This feature provides greater ease of access and less cleaning in general. Pax is a giant is the world of herbal vaporisers, a cult classic since 2007. Cutting edge technology coupled with a sexy sleek design is a hallmark of Pax. This is the all new Pax Herbal Grinder, the first they have