Manager Stool with Adjustable T-Arms Engineered to make personal positioning easy, so you're more comfortable and productive. Back and seat angle adjust simultaneously to cradle yourback for day long comfort. Pneumatic 24 to 29" seat height adjustment to ensure that your feet and legs are properly supported with the 7-1/2 to 11"H adjustable chrome footrest. Generous sized seat has extra thick 3-1/2" padding covered in durable 100% acrylic upholstery. Waterfall contoured design helps to reduce stress on knees and ensuresproper circulation. Contoured back provides lumbar support and encourages proper posture. Polypropylene steel reinforced base with 2" dual wheel carpet casters. Independent adjustable back angle, tilt lock and back tilt tension adjustment. Manager Stool seat 20"W x 19-1/2"D, back 19-1/2"W x 20"H. Includes aluminum chair base. Easy assembly. 1 Year Limited Warranty. 250 lbs weight capacity.