The Giffin Grip Model 10 is designed to center and secure your pots in seconds with its reliable, 3-point, spiral-based locking mechanism. Unlike clay wads, it will not stick to the rim of your pot. The Giffin Grip Model 10 centering tool simply snaps on and off your wheel head and fits any potters wheel with a removable splash pan or sufficient side clearance to mount a 16 (42cm) diameter plate. In order to accommodate a variety of pot sizes each Giffin Grip Model 10 comes with 5 sets of rods with foam hands. The Giffin Grip centering tool is designed to withstand years of continuous studio use.