Convenient and easy to take with you, these 4-piece grinders fit in your pocket for an easier grinding experience on the go! Diamond Grind gives you high-quality grinders, each 4-piece features useful features such as a sifting mesh screen and storage compartment to give you the exact grind that you are needing for your herbs and spices. Made of premium aluminum, each Diamond Grind is milled from a solid block of 6061 aircraft grade aluminum to guarantee that you get the best grinder possible that will resist wear and tear over time. Each grinder features diamond-shaped teeth to give your herbs the perfect cut – from coarse to a finer cut, depending on your preference! Every Diamond Grind comes with a lifetime manufacturers warranty.