[ Application ] --- Compatible with for vehicles with 4. 6L, 2-Valve, V8 engines; 4. 6 4V, 5. 4 V8 and 6. 8 V10.[ Material ] --- This Valve Spring Compressor tool is constructed with metal with a rust- and -resistant Manganese Phosphate coating.[ Design ] --- The valve spring compression tool is designed to be used with 3/8-inch breaker bar or ratchet camshafts, valve seals, valve springs, and retainers easily, Works with engine removed or installed, cylinder on or off[ Efficient ] --- This valve spring compressor tool compresses the valve without removing the cylinder ; Arm compressor makes it qulick and easy for removing and replacing valve springs, roller followers, rocker arms, and lash adjusters[ Note ] --- NOT compatible with for Triton 5. 4 3V or any other 3V or 4V engineColour:blackMaterial:MetalPackage Contents:1x Valve Spring CompressorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.