Ideal wherever there is a need to reach materials. Rolls easily into position and locks firmly to the floor for maximum safety. Operate on spring-loaded casters. Casters retract under operator's weight and rubber feet drop down. Non-clogging slip-resistant steel steps. Frame is welded 1" round steel tubing.. Durable Kleton Blue enamel finish. Step Size: 18" x 8". Top Step: 28". Top Step Size: 18" x 16". Base Dimensions: 20" x 30".