Modway Furniture EEI-713-BLK Agility Office Chair in Black AgilityCollection Padded Black Fabric Seat and Black Mesh BackStudy ConstructionOne-Touch Pneumatic Seat Height Adjustment360 Degree SwivelBlack Nylon Base with Dual Wheel Carpet Casters Overall Product Dimensions: 18"L x 16"W x 29 - 32"HSeat Height: 16 - 20.5"H Color: Black Product Materials: Aluminum, Nylon, Pvc, Foam