Smile Mart High-Back Ergonomic Mesh Office Chair with Adjustable Headrest, Light GrayIf you spend a lot of time at your desk, youll need such a comfortable and functional office chair. High mesh back supports your entire back, neck and head, at the same time, bringing a cool sitting experience. A large, cushioned seat relieves fatigue from prolonged sitting. Best of all, our desk chair is highly adaptable to meet your preferences. The seat height, lumbar support, headrest, armrests, and back tilt angle can all be adjusted for ultimate comfort. The star base with five nylon castors allows 360 smooth and mute mobility. Make your day productive but relaxing from now on.Smile Mart Ergonomic Mesh Office Chair with Multi-adjustable Headrest, Light GrayMaterials: Polyester Mesh, Nylon, Foam, Iron, PPColor: Light GrayOverall Dimensions(when the headrest is adjusted to its highest setting): 26 L 23.5 W (46-50) HSeat Size: 20.5 21 (W x D)Adjustable Seat Height: 17.7-21.3Armrests to the Ground(when the armrests are adjusted to their highest setting): 27.2-31Maximum Weight Capacity: 300 lbItem Weight: 29.4 lbShipping Weight: 33.4 lbNote:Please allow a 0.6 measurement tolerance.Ergonomically Designed Office ChairAdjustable Head Pillow & Armrests