The GEDORE Universal McPherson Strut Compressor, No. 5501-B, is able to handle right or left rising springs, conical springs, eccentric springs, springs with a low number of coils, springs with a high or varying spring pitch, spring struts with tension stop springs as well as spring struts with electronic control and sensors. The 5501-B is a portable, safe, one-man operation tool that is designed to tension even the strongest springs and provides damage-free holding over the damper tube.