Grinder Kingz Aluminum 2.5 Inch 4-Piece Herb Grinder - Best Grinders On The Market Has powerful magnets that hold the lid firmly in place during operation. Ultra-sharp, all-metal diamond-shaped teeth grind fresh herbs or tobacco smoothly for a fluffy texture. Made from Anodized Aircraft-Grade Stainless Steel - Built to last a lifetime. Also includes a handy pollen catcher so you sift herbs down to a fine consistency. Our 63mm grinders come in black and it's just 2.5" tall - Small enough to fit in your pocket.