Alchemy Grinders 4 Piece Zinc Alloy Herb Grinder with Pollen Catcher and Magnetic Lid SOLID CONSTRUCTION; super precise, CNC machined corrosion resistant 4 piece zinc alloy construction! ULTRA SHARP BLADES; diamond shaped grinding teeth that wont easily wear! EFFICIENT PERFORMANCE - Smooth Grinding Action With a Soft Twist & Outstanding Precision MAGNETIC LID WITH POLLEN CATCHER; eliminates mess and odours for convenient grinding on the go! LIFETIME GUARANTEE; every Grinder is backed by our 100%, no hassle lifetime guarantee!