The Giffin Grip products are essential re-centering tool for potters. Designed specifically for trimming, they works equally well for waxing the foot or banding the foot with oxides. After a simple one-time adjustment, either Giffin Grip quickly snaps on and off your wheel. It halves the time previously spent in trimming and makes practical trimming shapes that would otherwise have been left untrimmed. Hold little pots, big pots, short pots, tall pots, round sides and straight sides, upside down or right size up!