lifebuoy

A lifebuoy, or life buoy, is a ring-shaped flotation device designed to be thrown to a person who has fallen into the water. It provides buoyancy and acts as a visible target for rescue efforts.

Lifebuoys are made from buoyant materials such as foam or hollow plastics and are covered in bright colors, typically orange or red, with reflective tape for visibility. They may be foam-filled or inflatable and are often equipped with a grab line around the ring and a throwing rope attached to the outer edge or a bracket on ships, along with a small light at night.

To use, a lifebuoy is hurled toward the person in the water, aiming to land near them so they can grab the ring. The attached line can be used by a rescuer to pull the person toward safety, while the ring provides flotation to keep the person afloat.

In maritime safety practice, lifebuoys are standard equipment on ships and coastal installations. International regulations, such as those established by the International Maritime Organization, including SOLAS, require lifebuoys to be provided at designated locations and in accessible, clearly marked containers.

Lifebuoys are part of a broader set of personal flotation devices that include life jackets and life rings, as well as other rescue aids such as throw lines and life rafts. They are commonly used on ships, docks, and in coastal areas to aid water rescue efforts.