... to make useful and beautiful projects modular pontoon,pontoon,float dock, float buoysColors: BlueWeight: 7kgsBuoyancy: 350kg/ m2Material: HDPE with ... marine,breakwater, walk way, floating dock, floating pontoon, pontoon brigde, fenders, bollards,swimming pool and so on.float buoys ... projects, like pier, breakwater, walk way, floating dock, floating pontoon, pontoon brigde, fenders, bollards,swimming ...