The lifebuoy is an individual rescue device for helping the drowning. It is a float made of solid material, has a torus shape, bright color and reflective bands. If necessary, it can be equipped with a luminous buoy, to detect the lifebuoy on the water in the dark. Withstands loads when dropped into the water from a height of at least 30 m. According to the rules of the RRR, vessels must be equipped with lifebuoys on both sides of the ship, with a line of at least 30 m., In the amount of 2 pcs. for ships less than 30 meters, and 4 pcs. for ships more than 30 meters. There are: • in the place of installation of the seawall; • on the pilot boat at the pilot's landing site; • at the place of production of outboard work; • for passenger operations at sea, in the area of ​​transplantation; When mooring: • on the boat, with a line of 15 m; When towing: • near the place where the tow rope is closed and when performing other works on the raft, with a line of at least 25 m. The lifebuoys meet the requirements of SOLAS-74, RMRS and RRR.