QuickSet Caster.Camber Adapter This is the fastest way to check your front end alignment. Just hold it against the rim for easy, accurate readings. No spindle adapters required here. Billet aluminum fully CNC machined. Rigid for accurate readings. Threeleg design squares gauge to your wheel. Uses most caster camber gauges. Works on most any race car, 12 to 17 wheel. 3 point design makes setting caster easier. Folds for easy storage. Pointers on this model are designed for formed wheels. The tip goes inside the bead of the wheel and centers the gauge.