Sold as 1 Each. Mesh Executive Office Chairs. Seat Dimensions: 17.5' - 21.75'H x 21'W x 20'D. Care Instructions: S-Solvent based cleaner - no water. Modern Ergonomic Executive Task Office Chair with Height Adjustable Arms. Tilt Tension Adjustment Knob adjusts the chair's backward tilt resistance. 360 Degree Swivel Seat with Pneumatic Seat Height Adjustment. Color: Black LeatherSoft/Mesh; Material: Foam, Leather/Faux Leather, Mesh, Metal, Plastic. Back Dimensions: 21.75'W x 24'H. Assembly Required. High Back Design with breathable mesh material. Padded Black LeatherSoft Upholstered Seat with CAL 117 Fire Retardant Foam, LeatherSoft is leather and polyurethane for added Softness and Durability. 5-Star Nylon Base with Dual-Wheel Casters. Ergonomic - Built-in Lumbar Support; Waterfall Seat. Padded Arms. ANSI/BIFMA compliant for safety. Built-In Lumbar Support. Embellished white stitching on padded arms and seat. Overall Dimensions: 25.75'W x 25'D x 39' - 42.75'H. Rated for up to 250 lb