Features of plastic navigation buoys:Environmentally Friendly; Easy Maintainence; No painting, ever; High Impact Reisitance; Long Service Life Navigation buoy is an artificial sign that helps guide the navigation of ships, locate and mark obstructions and indicate warnings. The plastic navigation buoys are made of two parts: float section and extended tower. The float section is made of virgin PE with PU foam inside and the tower of virgin PE. Features of Plastic Navigaiton Buoy: Environmentally Friendly Easy Maintainence No painting, ever High Impact Reisitance Long Service Life Customized plastic navigation buoys available. Most of the buoys are made to order and can be designed to any shape or size to meet clients' requirements.