1.plastic floating dock for boat 2.strengthen design 3.Fast and ... pontoon systerm,marina,jet ski dock ,jetty ,pier,swimming pool,fish farm. ocean pontoon is a basic unit of ... ,pier,fish farm,breakwater,walk way,pontoon bridge,fender,swimming pool and so onWeight:7kgs(±5%)Buoyancy: 350kg/ m2Material: ... factory will offer a free replacement. except for man-made and natural disasters. plastic floating dock ...