1. material is steel Q235 2. submersible rear lights 3. for your aluminium and inflatable boats (the size is within 3600mm) modle: ALYS360Total length: 3600mmover width: 1550mmMax load: 300kgsLED rear lightshot galvanized wheelwheel size 12"CE hand winchhot galvanized leaf springhot galvanized boltsstainless steel nuts small trailer YS360P