This is the classic mobile step stool trusted in libraries, offices, and bookstores since 1957 for its durability, strength, utility, and hands-free ease-of-movement. The solid steel stool supports up to 500 lbs., provides 14" of elevation, and has a unique retractable spring-mounted caster system that rolls smoothly with just a light push from your foot, so you can maneuver the stool while your hands are full. The caster system locks down for stable, steady use as soon as you step or sit on it, and the non-skid vinyl treads provide confident footing while changing light bulbs or stowing books on upper shelves. Wrap-around bumpers prevent marring if the stool slides against a wall or furniture. Powder epoxy coating is rust- and scratch-resistant. Minor assembly requires no tools. Specify Silver or Red. 14" H x 16" Diam. (10 lbs.)