The fortified construction and soft comfort of the 6400-10 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 14in. diameter seat pan. Riveted through the steel pan are . 5in. -thick black vinyl cushioning that will provide years of dependable use. Footrest ring is securely bonded to each leg with four spotwell contact points. The padded adjustable backrests can be moved two inches up/down and forward/back.