Heavy Duty Movable Platform Ladder 

1.Capacity 350 lbs /160kg.
2.Perfect for use in warehouse, stockroom and maintenance areas.
3.Built to take heavy daily use.
4.First-step actuated locking system locks the ladder in place when an individual steps on the first step.
5.Two type of non-slip steel steps : Grip step and Perforated Step.
6.Single handrail is available; Special guardrail is available.
7.Easy and fast assembly.