General description Universal Valve Spring Compressor Tool Set designed for automotive repair, made from durable carbon steel. Technical specifications Material: Carbon steel Weight: 1.3 kg Pressure screw length: 113 mm Pressure screw diameter: 75 mm Pressure pads sizes: Ø 16 mm, 19 mm, 23 mm, 25 mm, 30 mm Compatibility and accessories Includes 5 pressure pads: 16 mm, 19 mm, 23 mm, 25 mm, 30 mm Includes 3 extension screws Includes 1 compression bar/C-frame Includes 1 hand lever