The fortified construction and soft comfort of the 6400 Series heavy-duty padded stools with backrests are ideal for hands-on educational settings like art rooms, science labs, home economics or shop classrooms. This reliable stool features a sturdy frame of 18-gauge steel tubing securely welded to a 14 inch diameter seat pan. Riveted through the steel pan are 0.5 inch thick vinyl cushioning that will provide years of dependable use. Footrest ring is securely bonded to each leg with four spotweld contact points. The padded adjustable backrests can be moved two inches up/down and forward/back.