Step Stools Kleton Step Stool Heavy-duty steel Comes with a double platform with non-slip rubber tread Spring-loaded casters retract under slight pressure, forcing base to the floor 11" diameter upper platform and 13 1/2" diameter lower platform 17 1/4" diameter base has an all-around protective bumper 16 1/2" overall height Wt. 10 lbs. • Colour: Black Capacity: 500 lbs. Rubbermaid Step Stool Tough 1-piece poly construction with anti-skid bottom Threaded top & expanded step 16" diameter base provides added stability Glides easily on retractable rubber casters 13" overall height Capacity: 350 lbs. Weight: 6 lbs.