This spring compressor is designed to compress almost anytypes of Macpherson style coil springs in the front and the rear. Three sets ofinterchangeable jaws (65 to 125mm, 88 to 160mm, 125 to 215mm) are provided tofit springs found in most automotive applications.You can compress the spring effortlessly in a safe linear method by simply tightening the nut on the compressor body by hand. All tools are packaged in a molded storage case for easy transportation.