The Nautica Kayak Lifter is a complete system for easily loading and unloading sit on top kayaks. It is the only one in the market that has an 80kg load capacity, does not require any heavy lifting and a single person can operate it using the included winch. The unit is designed to be neatly stored on the roof of your vehicle beside your kayak when not in operation. Important Note: Designed to fit most roof rack systems with bar overhang with at least 100mm.