Rolling Step Ladders • Ideal wherever there is a need to reach bulky materials• Rolls easily into position and locks firmly to the floor for maximum safety• 2 to 6 step ladders operate on spring-loaded casters• Casters retract under operator's weight, rubber feet drop down• First step on all 8 to 16 step ladders activates the floor lockingmechanism (step off and kick release to make the ladder mobile)• Non-clogging slip-resistant steel steps• Frame is rugged welded 1" round steel tubing• 8 to 16 step ladders shipped knocked down, easily assembled• Capacity: 300 lbs.• Durable Kleton blue enamel finish• CSA certified to the ANSI A14.7 standard