Switlik / Survival Technologies TechFloat Auto-inflating Life Ring
TechFloat is packed in one small, lightweight pouch is both a rugged, bagged, heaving line and an automatic (self-inflating) inflatable buoyant horseshoe ring at the end, which will provide 25 lbs. of buoyancy after inflation. This is an excellent device for all boats from 12 feet to 200 feet, particularly aboard powerboats. The ring inflates instantly on contact with the water. For getting real flotation to an overboard victim in a hurry, this is an excellent device that is easily thrown. Mount one right next to your helm. Highly recommended.