Double-cone high-efficiency Sea Anchor. Robust construction, the double-cone profile generates a special turbulence that increases the "Seabrake" efficiency as the sea strength increases. The water goes out through the 4 drainages at the base thus keeping the trim constant. Model GP 30I. Recommended for boats up to 16,50 m. Nine possible uses: - 1) floating anchor; - 2) anti-gliding anchor reducing broaching and gliding risk; - 3) anti-rolling when at anchor; - 4) emergency tacking; - 5) stabilization of boat on tow; - 6) anchor and keel; - 7) brake; - 8) stabilizer; - 9) emergency steering system.