Features and Benefits: Compressor works on most MacPherson strut assemblies and is used with replacements Use the compressor when replacing bent strut or strut tube and damaged spindles Use on or off vehicle Acme threaded screw for durability Lifetime Warranty (Does not cover abuse) Works with most MacPherson strut assemblies to quickly assist in replacement of bent struts strut tubes and damaged filters while on or off the vehicle. Tool manufactured with Acme threaded screw for durability. Fits most automobiles but should not be used on GM A in. C in. J in. or X in. body cars. Weight: 7 lbs.