2 step extension ladder

. . 2 step extension ladder :. . . . A 2-stage extension ladder for mounting under a box or loading platform. It can be used in vehicle bodies , box semi-trailers, platform semi-trailers, tankers and trailers.The ladder hasdeep anti-slip steps and anti-extension protection. . . Technical data :Depth of step : 60mmDepth of step : 275mmUseable height : 440mm (from mounting plane to 1 step)Material : steel , galvanized.Weight : 6.6kg. . . .