KONE "Gravity Cone" Aluminum Grinder 2.5 Inch 4 Piece Tobacco, Spice, & Herb Patent-Pending "Gravity Cone" Design: first-of-its-kind cone shaped grinder Greater grinding capacity and a smoother, finer grind 2.5" Diameter x 2.5" tall 100% Aluminum build is stronger and lighter than zinc Partially-magnetic top is better for tabletop use