Features: 1.This valve spring compressor tool is designed to fit for Honda B?Series VTEC Head B16A B18C H22A. 2.Easy to use, just use the included bolts and washers to connect the tool to the head, and then just install the steel "cup" to the holder you want to process, and you can "push" the cup down Insert the retainer, then loosen the retainer, and then remove the retainer and the rest. 3.Designed to make it easier to replace valve stem seals, valve springs, retainers, and even valve guides. 4.The valve spring compressor will save you the cost of buying a new cylinder head gasket and save the time of disassembling the cylinder head. 5.You can perform valve work without removing the valve head from the valve block, which is very convenient. Specification: Item Type: Valve Spring Compressor Tool_x000D_ Material: Billet 6061-T6 Aluminium_x000D_ Color: Black_x000D_ Fitment: Fit for Honda Acura B?Series VTEC Head B16A B16B B18C & H22A DOHC VTEC_x000D_ (Tool does NOT work for Non-VTEC head ! !) Note: Tool does NOT work for Non?VTEC head.