Feature: 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 Material: Billet 6061-T6 AluminiumColor: BlackFitment: Fit for Honda Acura B‑Series VTEC Head B16A B16B B18C & H22A DOHC VTEC(Tool does NOT work for Non-VTEC head ! !) . Package List: 1 x Valve Spring Compressor1 x Spring Ring3 x Screw2 x Washer2 x Gasket Note: Tool does NOT work for Non‑VTEC head.