Sturdy and DurableThe valve spring compression tool is made of high quality chrome vanadium steel material with high hardness, wear resistance and corrosion resistance. Has a good load capacity and rust resistance. FUNCTION:The engine valve spring compression tool is designed to quickly and easily remove and replace old and damaged valve springs from your vehicle. Easy to use: simply remove and install valve springs, do not remove the cylinder head from the engine, valve removal jaws are offset to properly tension parallel pressure springs. APPLICATION - The valve spring compression tool is suitable for double springs, inner springs and outer springs making it a multi-purpose tool, not suitable for engines with low seat valves. Package includes: 1 x valve spring compressor