Polyform S-1 Buoy 6" x 15" - Cobalt Blue [S-1 COBALT BLUE]S 1 Buoy 6" x 15" Cobalt Blue The adaptable S Series S 1 buoy is an excellent choice for multipurpose applications. Use as a fender or mooring buoy for small boats and jet skis. Its compact size is perfect when storage space is limited. The S Series' elongated design allows it to sit higher in the water than an ordinary round buoy. Replace the "bleach bottle" when small pot and trap fishing with a durable, distinctly visible marker buoy. Water sport