4 Layers Alloy Tobacco Crusher Hand Smoking Grinders Herbal Spice Herb Grinder (Black) GRIND INSTANTLY: Whether you are grinding Herbs, Spices, Tobacco or Medicinal Herbs 2.5 INCH 4 LAYERS: The optimal size for an Herb & Spice Crusher. Large enough to grind plenty of herbs, but small enough to fit in your pocket. TOP QUALITY & DESIGN: Built from heavy-duty aircraft-grade aluminum on high-precision computerized CNC machines for the utmost quality, sharpest teeth and longest durability. The optimum 2.5-inch size ensures you can grind a lot of herbs in one go. HEAVY DUTY PREMIUM CONSTRUCTION - If you've ever used a cheap plastic herb grinder you know how quickly they fall apart. Your new Shilcons metal grey grinder is crafted from 100% lead-free zinc alloy so you can look forward to using it for years to come! 100% GUARANTEE: Using superior quality materials & workmanship this Grinder has a Full Guarantee