The Rolling Step Ladder-3 Step allows you to access out of reach shelves. Folding up for storage this is a convenient ladder.What happens when you take a sturdy ladder, and add casters? The result is the handy 3 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. Aluminum.