Details: Universal Magnetic Gauge Tool For Auto Car Truck Camber /Castor Strut Wheel Alignment Measures the Camber and Caster angle on the wheel hub or brake disc Suitable for accurate checking of the castor and camber angle Has a simple leveling adjustment from -5 degrees to 5 degrees Magnetic gauge attaches to the hub or disc brake Allows adjustment to maintain correct wheel alignment and even tyre wear Allows you to return the strut to the original camber position after dismantling and re-assembling the suspension or to check the amount of camber change before re-installing Easy to read and convenient to operate Time and money saving 100% brand new and high quality Color: Silver(As pictures show) Dimension: 127*50mm/5*1.97 inch(Approx) How to use ? Remove the four-wheel positioning sensor (fixture), remove the tire. Suck the Magnetic Gauge on the side of the brake wheel carefully. Adjustment the Magnetic Gauge to zero. Install on the required positioning of special parts. Use special tools to adjust the positioning parts to the required measurement angle, with the help of the Magnetic Gauge degree. If you find a little deviation when you retest, just need to fine-tuning at the bottom of the car(Generally a little deviation does not cause positioning failure). Package content: 1*Magnetic Gauge Tool