ApplicationCompatible for Honda/Acura B16A B18C VTEC And H22A DOHC EnginesFeatures- With the help of this valve spring compressor tool, it will be fast and easy to compress and remove the valves spring assembly in your vehicle. - Attach the body of this valve spring compressor tool to the head with the two supplied short bolts. Then put the retainer cap on the spring or retainer you want remove. - After Tightening the long bolt,release the the tension on the bolt by unscrewing it and remove the retainer cap to remove the spring. - Our valve spring compressor was specifically designed for VTEC heads. - This tool can be used with the head on the block. - No need to remove the rocker arm shafts.Specification- Condition: 100% Brand New - Warranty: one year warranty for any manufacture defectPackage Includesbrand new valve spring compressor tool 1 long bolt 1 retainer cap 2 short bolts 2 washersNotePlease feel free to contact us for whatever we can help.