Motorcycle Valve Spring Installation Removal ToolsDescriptionInstall the valve port:Install end of the inner structure of a springForce is applied to the inner port indented inAfter releasing the inner port re-homing forceRemoving the valve port:Removing the valve port internal hollowSpecificationDiameter: 17.3mmOverall Length: 105mmPackage Inckuded1 X Motorcycle Valve Removal Tools