Schumacher U3582 - This is a Schumacher Precision Balance Pivot Jig, and is intended for use with the Schumacher Mi4LP as well as the Mi5. The Schumacher Balancing Jig is used with a pair of scales to accurately measure the corner weights of your Mi4LP or Mi5 car. The three point balancing system eliminates any possibility of a false reading that could be caused by chassis tweak. Mi4LP and Mi5 chassis have the correct hole locations for the mounting of this very simple and accurate system.