The 2.2″ Kannastör® 4pc Jar Body Grinder is finished in matte gunmetal and is manufactured from food-grade aluminium and glass. The glass compartment enables you to check just how much (if any!) ground herb is left without unscrewing the top. It comes with a replaceable 60 mesh screen (100 mesh also available to buy) and a limited lifetime warranty (Screens – 30 days).Kannastör® grinders are manufactured from food-grade 61/60 aluminium and are really designed and built to last. The sifting chamber can be removed to transform it into a 3-piece unit for easier portability if that is required. Grinding your herbs enables you to extract maximum enjoyment most efficiently and Kannastör® has an enviable reputation for efficient and durable grinders that are truly made to last.Limited Lifetime Warranty against manufacturer defects, including broken teeth for any reason.Dimensions – 2.5″ (H) x 2.125″ (D).