... use our products to make useful and beautiful projects floating pontoon,pontoon,float dock, float buoysColors: BlueWeight: 7kgsBuoyancy: 350kg/ ... like pier, breakwater, walk way, floating dock, floating pontoon, pontoon brigde, fenders, bollards,swimming pool and so on."Combination ... maintenance, repair, replacement and maintenance costs and time.7, self-supporting, such as the Department of ships ...