Kitclan Zinc Alloy 5 Pieces Herb Grinder with Pollen Catcher, 2.2-Inch, Black MATERIAL: Solid and durable zinc alloy metal. DIMENSION: 2.5 IN*2.2 IN, 5 packs, the weight is about 220g. THICK SHARP CUTTING TEETH: not plastic but all metal sharp diamond shaped grinding teeth which makes the grinding action very smoothly. POLLEN CATCHER:This Herb Grinder catches all you need in the bottom and there is a nice screen to catch the fine crystals. EASY TO USE:The 5 piece design disassembles easily providing for easy use and cleaning.The magnet in the top of this grinder holds strong and makes things quick and easy.