Santa Cruz 2 Piece Aluminum Herb Grinder Mini 40mm (Aluminum and Colors) (Grey) Mini Size Has a Diameter of About 1.5" or 40mm Deep Knurled Grip Provides an Effortless Twist Patented Tooth Design "Fluffs to Perfection" Medical Grade Hard-Anodized Aluminum Build Neodymium Rare Earth Magnets Create an Airtight Seal