... 1, durable aluminum frame 2, 4 sections with 6 sturdy locking hinge joints 3, capacity of 150kgs A: ... Ladder widthF: Width at basefolding aluminum ladder with joint 6 steps Specification: Model#5100251003510045100551006Sec x Rungs per sec4 x ... leaning ladder, stepladder, stairwell ladder, scaffold, standoff ladder, work platform, and work bench, etc;Compact folding ladders in 4 sections with ...