The heavy-duty construction and Adaptive Spring Bracket allow the user to single-handedly compress many of the strut assemblies found on passenger cars, light-trucks, vans, and SUV’s; Adaptive Spring Bracket can be configured in multiple configurations; For strut assemblies with spring coils 3.5″ to 8.75″ wide; Accepts maximum spring height of 19″; Can be used with varying coil diameters up to 5/8″; Easy, one-person use; Can be mounted to the floor (hardware not provided)