... Catwalk, jetty, PWC dock, motor-boat dock, boat dock,floating wooden house, plastic buoy, sunny pad, platforms for water, ferry, ... net cage.Feature & Value of modular cube system (long pin):1.Size (length*width*height)Size of #1 pontoon: ... to eliminate such accidents usually happened to cement and wooden structures as sliding and injuries by hook and nails. ... with #2 pontoons it can load 4 pcs. long pin