1.Efficient GrindingMetal herb grinder is equipped with sharp, diamond-shaped teeth to gnash through your herbs with great ease, a pollen screen, a catching bottom piece to collect pollen dust and a plastic scraper to gather the pollen dust. 2.Solid and Sturdy ConstructionMade of premium tough zinc alloy, herb grinders 4-Pieces and 3-chamber design ensures optimal performance and exceptional durability for constant use. 3.Magnetic Lid for Secure FitThis stylish black 50mm metal grinders by has magnets installed in the grinding compartment to keep the lid securely attached while allowing free motion of the two grinding halves. 4.Compact and PortableThis aluminum herb grinders is only 2*1.4 inches and 100 gram. Its compact design makes it highly suitable for bring along in your pocket or purse while you are out and about. 5.Wide UsageThis grinder for herb is suitable for evenly grinding your herb, bud or spice without leaving large chunks behind. This multi-use grinder is a must for housewives!