Herb grinder is made from premium zinc alloy, thicker, heavier, and more durable. It is small enough to fit in your pocket and very portable for travel grinding. Ensure you a smooth twist and an efficient grinding for herb, spice or tea. The high quality metal teeth have exceptional durability. It is easy and convenient to assemble, use, and clean.Colors:Black, Blue, Silver, Red, Green.Size:1.22" Diam. * 4.33" H.