... floating bridge,ocean pontoon,floating pontoon,floating dock,pontoon,modular float systerm,pontoon systerm,marina,jet ski dock ,jetty ,pier,swimming ... ,fish farm,breakwater,walk way,pontoon bridge,fender,swimming pool and so onWeight:7kgs(±5%)Buoyancy: 350kg/ m2Material: high-density polyethylene ... factory will offer a free replacement. except for man-made and natural disasters. modular float systerm