Foam, Mesh, Metal, Plastic, Plywood MULTIPURPOSE SEATING: Commercial grade office chair with space-saving flip-up arms ideal the front office, executive suite, or at-home work spaces BREATHABLE COMFORT: Ventilated curved mesh back with built-in lumbar support and 3” padded waterfall seat ideal for long workdays ADJUSTABLE FEATURES: 360° pneumatic seat height adjustment along with tilt lock and 120° of tilt tension to fit creates a custom seating experience for any body type EASY CARE AND ASSEMBLY: Quick assembly with included tools and step-by-step instructions and wipes clean with a damp cloth PRODUCT MEASUREMENTS: Overall Size: 24.5"W x 25.5"D x 37.5-41.25"H; Seat Size: 20.25"W x 19"D x 17.25-20.75"H; Back Size: 17-20"W x 23"H; Arm Size: 26.25-30.25"H from floor; 8"H from seat