The best and the most innovative boat roller system for sea kayaks and rowing shells you can buy. Makes loading a snap. Boat simply "rolls" onto roof. Wheels rock and pivot for easy loading while conforming to hull shapes. Wheels feature a simple-to-use, lever-activated brake system to prvent any rolling or movement. Boats ride safe and secure: no side-to-side or front-to-back movement; Kraton padding on wheels; Heavy-duty straps included. Wing compatible. Available May 1997.