Hand Crank Design Hand Cranked herb grinder crusher increases the fun of grinding Clear Top Design Transparent top of the tobacco grinder allows you to observe the whole grinding process Spice Grinder Specifications Material: Zinc AlloyDiameter: 55mm (2.16 inches)Height: 50mm (1.96 inches)Weight: 180gColor: Silver Disassemble Pieces 4 pieces & 3 chambers allows for grinding, storage, and filtration of pollen. The herb grinder easy to disassemble, use and clean Compact and Portable Zinc Alloy Shredder for Dried Spices with Hand Crank！ Broad Application： Ideal for grinding various soft-shell herbs and spices, such as: Basil, rosemary, bay leaves, etc.Not suitable for grinding hard shell spices like: black pepper, cinnamon, Cloves, etc.Easy to carry around. You can use it at home or travel, or as a gift. Efficient Grinding： Metal herb grinder is equipped with sharp, diamond-shaped teeth to gnash through your herbs with great ease, a pollen screen, a catching bottom piece to collect pollen dust and a plastic scraper to gather the pollen dust. 4-Layer Clear Top Herb Grinder：Transparent magnetic cover allows you to observe the whole grinding process, no need to unscrew the spice grinder.