Sold as 1 Each. Mesh Executive Office Chairs. Seat Dimensions: 18.75' - 22.5'H x 20'W x 19'D. Care Instructions: S-Solvent based cleaner - no water. High back office chair with wheels. Padded Flip-Up Arms. Made with black nylon and a chrome base. Color: Black; Material: Chrome, Foam, Mesh, Metal, Plastic. Back Dimensions: 20'W x 30.5'H. Assembly Required. Mesh back with built-in lumbar support. Tilt Lock Mechanism rocks/tilts the chair and locks in an upright position. Ergonomic - Built-in Lumbar Support; Adjustable Headrest; Waterfall Seat. Padded Flip-Up Arms. ANSI/BIFMA compliant for safety. Adjustable headrest for maximum comfort. Tilt Tension Adjustment Knob adjusts the chair's backward tilt resistance. Overall Dimensions: 25.5'W x 24'D x 47.5' - 52.5'H. Rated for up to 250 lbs Based on 6-8 Hours Use. Warranty: 2 Years Limited. Executive style swivel chair perfect for office and desk. Waterfall Seat reduces pressure on your legs.