About this item SpecificationsQuantity: 2; Color: blue; Material: steel, iron, PP, polyester mesh, foam, non-woven fabric, plywood; Overall dimension: 24.5 W 24 D × (35-39) H; Adjustable seat height: 18-22; Max. load capacity (ea.): 300lb Robust Chair ConstructionThis set of 2 mid-back office chairs is constructed of hard-wearing polyester mesh, nylon star base, solid rolling casters and steel gas cylinder. It has passed BIFMA X5.1 Test and is recommended for office use for customers under 300 lbs. Breathable Mid-Back DesignFeaturing densely knitted mesh backrest, this 2-piece mesh office chair set allows better airflow, accelerating heat and moisture dissipation. The mid-back design supports your spine's natural curve and protects your lower and middle back as it prompts you to sit straight. Adjustable Seat HeightThe seat height of this computer mesh chair can be simply adjusted from 46cm/18 to 56cm/22 by a little push-up/press down at the lever under the seat according to your needs.