The Infinity Track system is standard on every ShoreMaster dock. It allows for easy installation and removal of all Infinity Track accessories by just loosening or tightening one T-Handle set screw. Shown in the picture is an Infinity Track bracket, which goes onto accessories to allow them to connect to the track. Infinity Track was formerly called Quick Connect (QC for short) and you may hear it referred to that at times, but they are the same system. The track runs the entire perimeter of the dock and accessories can be placed anywhere along the track, not just at set points.