OT2977 Features: * Airgrid seat and airgrid back with built-in lumbar support * 360 Degree swivel * 2-Way adjustable arms * One touch pneumatic seat height adjustment * Dual function control * Height and width adjustable arms with PU pads * Heavy duty angled nylon base with oversized dual wheel carpet casters Options: * Upholstered in black fabric Assembly Instructions: * Assembly required Dimensions: * Arms to floor height: 26.5"" * Seat dimensions: 20"" W x 20"" D * Back dimensions: 19"" H x 20"" W * Seat height: 19"" -23.5"" Collection: * Space seating collection Warranty: * Manufacturer provides limited lifetime warranty