Product function: After the measurement data of the four- aligner is determined, for example, the camber angle of the measured data of the aligner is greater than the specified value 1 degree, then you need to remove the positioning fixture, remove the tire, and replace the required four- alignment parts. Then you need our magnetic level. In the past, when the operator adjusted the inclination angle, he operated with his own experience, and sometimes there would be errors. Using the level gauge produced by us, he could accurately adjust to the required measurement angle. Measure camber and caster on hubs or brake discs, Ideal for checks of caster and camber. Has simple leveling adjustment from -5 degrees to 5 degrees. Magnetometer mounted on hub or disc brake, Allows adjustments to maintain proper alignment, even with tire wear, Allows you to restore the strut to original camber position after disassembly and reassembly. Before reinstalling, check the amount of suspension or camber changes, Easy to read and operate, save time and money Instructions for : 1. Remove the four- alignment sensor () and remove the tire; 2. Carefully suck the magnetic level on the side of the brake disc; 3. Adjust the level to ; 4. Install the required positioning parts; 5. the tool to adjust the positioning part to the required measurement angle with the help of the degree indication of the magnetic level. 6. If there is a slight deviation in the re-measurement with the locator, just fine-tune it at the bottom of the vehicle. (Generally, a small deviation will not a positioning failure) Material: Plastic+ABS colour: White Package Contents: 1 x magnetic measuring tool Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.