Every technician has been frustrated when trying to remove or replace side-post batteries on certain GM vehicles. Here"s the answer! This extra length terminal wrench allows for better accessibility in reaching side terminals on the following: Pontiac Grand AM "94 to present, GM "W" Body Cars "94 to present, Buick Regal, Olds Cutlass, Chevrolet Lumina and Pontiac Grand Prix. It"s easy to use and handy to have.