Don't take chances with your regulatory markers.These buoys remain stable in the worst conditions.Self-righting Sur-Mark and Sur-Mark II regulatory marker buoys feature one-piece seamless construction of tough, UV-protected polyethylene with recessed, galvanized eyes and internal concrete ballast. Visible day or night. Orange marking tape is included. Add Sur-Mark Buoy Labels (sold separately) for cautionary applications. Both models stand upright for storage. Chain and hardware sold separately.Key FeaturesOne-piece seamless constructionMade of tough, UV-protected polyethyleneInternal concrete ballastRecessed galvanized eyesVisible day or night.Upright storage