Made from Aircraft Grade Aluminum Rod using the newest in CNC machining technology. Designed for smooth finish; this means no wear or smudge marks. Razor sharp Diamond Cutting Blades for extreme and durable grinding power. Stainless steel pollen screen allows for only the finest pollen to fall to the bottom catch. Powerful Neodymium Magnets for incredible closure. Thin poly ring around top grinding section, for smooth grinding and no friction. Pollen scraper Included!