Deluxe Ergonomic Drafting Chair with 20" Diameter Foot ring . Fabric Seat and Back Tilt Adjustment with Adjustable Foot ring. Pneumatic Height Adjustment 19.5" to 27". Heavy Duty Nylon Base with Dual Wheel Carpet Casters Features: Fabric Seat and Mesh Back 20" Diameter Foot ring Pneumatic Height Adjustment 19.5" to 27" Specifications: Overall Product Dimensions: 46" H x 19" W x 25" DOffice Star