The Grinder is a 160mm of length and 60mm of width. It comes with 6 different colors among them a rainbow special one. This great smoking tool is composed of a grinding chamber, a collecting room that leads the falling herbs to the last part of the grinder; the cone filler. The process of preparing your joint then is as easy as following; put the herbs in the grinding room, after spinning to different direction, it will automatically fall down through the whole to the cone. Press the button below the grinder body, the cone will jump out smoothly. You can enjoy it now.