Popular in the warehouse or office, practical STAPLETON Step Ladders help you access out-of-reach supplies. Very stable design features large 10x16" steps with anti-slip surfaces. When pressure is placed on the bottom step, the spring-loaded casters retract and plastic cups with rubber rings grip the floor. Steel tube frame. Industrial-duty rated at 300 lbs. Meets or exceeds all OSHA-ANSI standards.