The Rolling Step Ladder-2 Step provides a leg up where and when it's needed. Set on castors this ladder makes it easy to put in place.What happens when you take a sturdy ladder, and add casters? The result is the handy 2 step Rolling Ladder. Just push it around with a hand or foot then climb on up. Welded, high-tensile aluminum construction. ANSI and OSHA compliant with a 300lb. load rating. Weight-activated retractable casters. Can be collapsed for storage.