Feature： Increases tire life 25%-50% Reduces vibration Helps prevent tire cupping No pre-balancing required Lower tire operating temps 8%-10% Simply remove the wheel, use the bolt holes as guides and reinstall the wheel. Steer axle balancers mount between the hub and wheel, while balancers for the duals mount between the dual wheels. Fit For： For Light Duty Trucks Bus/Motorhome Trailers/RVs Package： 2× 300-318A Central wheel balancers 2× 300-318B Central wheel balancers W/O Product Instruction .
