SUPERIORCERAMIC HERB GRINDERÂ with rugged sealed aluminum, super sharp grinding teeth, very smooth motion,and powerful Neodymium magnets. This is the better made precision grinder youneed for easy use and maximum enjoyment of all your favorite plants and herbs. Provides outstanding loose leaf consistency of dried herbs. While this little grinder is exceptionally useful, it's still light weight and compact in size.Just 2.5" in diameter and 1.85â tall. Many people buy one to tuck in their pocket, purse, backpack, desk drawer, or keep in the night stand next to the bed. These work so well you will always want to have one conveniently nearby.