Quickly removes and installs valve keepers on most overhead valve engines. Makes valve component disassembly and reassembly fast and easy. Magnet in tool body captures keepers for quick removal and valve disassembly. Made by high quality metal, in use. Stable characteristics, high reliability. Can be used on the car or bench. This professional-quality valve spring compressor tool kit can be used for automobiles, small marine engines and most motorcycle engines. The range of adapter sizes makes this kit one of the most versatile on the market because it can remove and compress springs on most cylinder heads. This tool kit allows you to install the valve spring correctly because it can compress the spring more easily. Instructions for use First install the valve stem, spring and spring seat into the cylinder head, Pad the cylinder head with a hemispherical rubber gasket, and put the valve lock piece into the spring seat, Then the installer on the spring seat, down by hand to install the valve. Instructions for use: First install the valve stem, spring and spring seat into the cylinder head, Pad the cylinder head with a hemispherical rubber gasket, and put the valve lock piece into the spring seat, Then the installer on the spring seat, down by hand to install the valve. Colour:black Material:Metal Package Contents: 2 x Motorcycle valve separator tool set Only 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.