• Sturdy step stool is rugged enough to support 350 lb • The molded-in, no-slip surface prevents falls • Four retractable, nonmarking casters and an antiskid bottom make the stool easy to maneuver and hold it in place • Square edges allow flush contact with shelving and cabinets • Step stool offers two levels and is made of structural plastic, which is thicker and sturdier than standard, injection-molded plastic