The Utopia Grind 6.4cm 4-Piece Herb Grinder features strong, durable zinc alloy construction that was built to last. Once you have the grinder in your hand, you will feel the quality of materials immediately. ÃÂ The lid is held on by a neodynium magnet, so it won't fall off in your pocket. Under the lid, housed are 48 super sharp diamond-shaped teeth that will consistently and effortlessly cut the herb to the perfect consistency and size every time. ÃÂ The nylon ring between the top 2 pieces make grinding your herbs an effortless and whisper-quiet experience. ÃÂ The pollen screen will sift out the desirable pollen/kief during each grind. The pollen scraper will make collecting the materials simple and easy. ÃÂ We respect your privacy, so the grinder is shipped in a plain package and includes a convenient carrying bag to protect your grinder from scratches. ÃÂ Our lifetime guarantee means what it says! Return the grinder any time for an exchange or refund, no hassles and no questions asked. We want you to be satisfied with our product. This will be the last herb grinder you buy...until you buy one for a friend!