ALR2970 Features: * Seat / back height adjustment * High-back chair with ratchet back height adjustment, mesh covered seat and back * Aesthetically designed for contemporary feel * Ratchet back height adjustment provides customized lumbar support * Breathable mesh-covered curved back encourages proper posture * Adjustable arms offer optimal positioning * Five-star base with casters * Tilt tension * Pneumatic seat glide mechanism * Asynchronous control * Recommended applications: General office and task * Capacity: 250 lbs Color/Finish: * Color: Black Specifications: * 360 Swivel Dimensions: * Seat size : 19"" - 24"" H x 18.25"" D * Overall dimensions: 12.6"" H x 26"" W x 27.17"" D