-Brand new and high quality -Made from heavy-duty polypropylene to support an impressive 330 lbs -Equipped with wheels which will roll easily along hard floors and most commercial carpets -Spring loaded wheels will retract under weight -The lower section can be used alone as a smaller step stool -Easy to assemble â- Durable Material and Stable Construction - This kik step stool is made of high-density plastic material which is durable and sturdy enough for long term use. It easily holds weight