Motion Pro Harley-Davidson® pushrod tools are designed for collapsible pushrod tubes. They make removal and installation much easier without busting your knuckles, and help protect engine parts from getting scratched when trying to use a screwdriver between the fins. The flat portion fits under the cylinder head while the cupped end fits over the bell in the tube to allow compression of the spring for easy access to the spring cap retainer. If you work on your own motorcycle, Motion Pro Harley-Davidson® pushrod tools are a necessity for your tool collection.