Sold as 1 Each. Mesh Task Office Chairs. Back Dimensions: 16'W x 16.5'H. Assembly Required. Mid-Back Design with breathable mesh material. 5-Star Nylon Base with Dual-Wheel Casters. Color: Gray; Material: Foam, Mesh, Metal, Plastic, Plywood, Polyester. Armless Design. ANSI/BIFMA compliant for safety. Innovative Pivot Back - activate by pushing back. Overall Dimensions: 23'W x 23'D x 31.5' - 36.25'H. Rated for up to 250 lbs Based on 6-8 Hours Use. Warranty: 1 Year Limited. Padded Mesh Upholstered Seat with CAL 117 Fire Retardant Foam. Seat Dimensions: 16' - 20.5'H x 17'W x 16.75'D. Care Instructions: D-Dry Cloth. Modern Office Chair. Pneumatic Seat Height Adjustment.