PMD Products Camber Caster Gauge and Wheel Alignment Rack Rim Clamp Mount Tool for 11" to 25" Rims Magnetic Caster Camber Gauge with rim mount rack to fit rims diameter of 11" to 25" Mount Can be used on aluminum and steel wheels, fit almost any type of wheel Mounts to rim edge Alignment Rack is designed for the included caster camber gauge Professional Quality Magnetic Caster Camber & Kingpin Gauge Universal Plate - Heavy Duty Sliding Rods, patented rim clamps