Stool has 7⁄8" 18-gauge steel tube frame with Metal Gray finish. Chrome plated floor glides. 5⁄8"Diam. footring is welded to each leg by four contact points for added rigidity. Square, contoured hardboard seat with 16 rivets to prevent warping. Backrest is 12"Wx6"H and adjustable 2" up/down and 2" forward/back. Product meets or exceeds applicable ANSI/BIFMA standards. 16"Wx16"Dx31" to 33"H with backrest. 17 lbs.