Davis Instruments’ DockShockle helps lines last longer and minimize wear to cleats. Designed for smaller, lighter boats up to 40 feet, DockShockle features a patented line limiter and progressive tension design to ease constant or sudden shock loads. The outer cover is made of UV-resistant, hollow nylon webbing to protect marine-grade elastomer from the sun’s damaging rays. Dockshockle measures 12 inches long and comes with a pair of Mini-Line Grabbers for easy connection. MSRP $49.99; davisnet.com