Sur-mark buoys are moulded from tough UV protected polyethylene. One-piece seamless construction, internal concrete ballast and recessed galvanized eye. Buoys stand upright for storage and high quality self adhesive warning labels
(included) are available to fit both No. 46103 and No. 46104 buoys. All labels are brightly coloured for high visibility (two labels per buoy).

Surmark II marker buoy, 61"x9", sits 37" above waterline.