Diamond Grind offers you a premium grinder to enjoy your favorite legal smoking herbs with so that your smoking experience is smoother and easier to enjoy! Every Diamond Grind is milled from a high-quality block of 6061 aircraft grade aluminum and resists wear, tear, and threading. Featuring diamond-shaped toothing and an easy to use design with plenty of room for your herbs, these 4-piece grinders can cut your things to perfection with ease. Every Diamond Grind comes with a manufacturers lifetime warranty, so you can rest easy knowing that you can always have a premium grinder nearby that will make your smokes that much better!