CLH Products' O-Line-Er is a patented tool for installing wheels onto pilot hub assemblies. The tool is designed to make it easy to line up wheel studs with holes in the rim for easy installation, resulting in decreased installation time. It also reduces strain on the back, arms, shoulders and legs, which can help increase worker productivity and lessen the risk of injury from struggling with heavy tires and rims when re-installing them onto wheel hub assemblies.