The Multi-Purpose Upholstered Mobile Stool by Learniture is ideal for any learning or work space that demands flexibility. The durable polypropylene stool frame is easy to clean and features a plush, fabric-covered foam seat for extended comfort. Big rolling casters make it easy to move over any floor type. Maximum weight capacity of 330 pounds. Not stackable. Available with or without an upholstered backrest that doubles as a tablet arm (tablet arm side is polypropylene).