A simple mixer for a drill or other means of spinning. I guess you could spin it between your palms like someone trying to start a fire... We have the means to motorize now, why go all primitive? Either way, A couple flavors are included. One version uses a .25 inch hex shaft and the other has a .125 inch round hole for coat hangers or bamboo skewers or anything around that size. Rotate counter-clockwise to force your mix down and clockwise to move it upward. There are also (2) Hex shaft files included. One is 4 inches long and the other is 5 inches long.