5500Lbs Struct Compressor, Hydraulic Spring Compressor Safely compress or remove spring for replacement and repair of strut components Foot pedal operated hydraulic jack with quick release Strut shaft clasp can be adjusted to secures the strut during operation Ram bracket can be slide for height adjustment Compressed Spring Diameter: 400mm (15.75''), Compression Length: 210-570mm (8.27-22.44'')