Utilizing his woodworking and metal working skills Marc from Marc's Studio fashioned a centering tool capable of centering 1 lbs. to over 18 lbs. of clay with ease. With the help of a few Potters from the Turk Hill Crafts school this video demonstrates the ease of use of this awesome tool. Centering clay couldn't be easier with the Strong Arm, production potters will find this tool addicting, hobby potters will be able to center amounts of clay they never thought possible. Strongarmcenteringtools.com