:For the addiction recovery group see: LifeRing Secular Recovery A lifebuoy, lifering or lifebelt, also known as a "kisby ring" or "perry buoy",'s a life saving buoy designed to be thrown to a person in the water, to provide buoyancy, to prevent drowning. Modern lifebuoys are fitted with a seawater-activated light, or lights, to aid rescue at night. The lifebuoy usually's ring-shaped or horseshoe-shaped and has a connecting line allowing the casualty to be pulled to the rescuer. They're carried… (More on Lifebuoy)