The Flood Control Life Buoy features high-density solid foam filling with premium Oxford cloth covering, specifically designed for flood control emergency operations. Three sizes 52/60/72cm outer diameter provide 8/15/18kg buoyancy, suitable for 25-90kg individuals. Ultra-light design weighing only 0.21-0.43kg for quick deployment by flood control personnel. Blue-white, orange-white, red-white, camouflage color options, high visibility design ensures clear visibility in turbid waters. Suitable for reservoir discharge, urban flooding, river overflow and other flood control disaster scenarios, providing professional flood rescue equipment for water conservancy, emergency, and fire departments.