Phoenix Star Weed Grinder for Herbs PHX528 measures 2 inches in diameter and 1.8 inches in height. It's so small, so you can put it in your pockets when you are outside. The sleek 4 Layers Weed Grinder is constructed of maximum-strength Aircraft Grade Aluminum to bring a stable grinder with powerful performance. Especially, this weed grinder is equipped with a stainless steel mesh screen to filter very fine pollen into the catcher. Just open the top cap and put dry herbs into the second layer, then close the lid and rotate this wholesale weed grinder several times to get some smaller bitty on the fourth layer. You can enjoy the original flavor after it's burnt fully.