Deluxe Ergonomic Drafting Chair 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 Free Ground Shipping (UPS / FedEx / Curbside) DC Series collection Part of the Work Smart series Overall Dimensions: 19"w x 25"d x 46"h Fabric Seat and Mesh Back 20" Diameter Foot ring Pneumatic Height Adjustment 19.5" to 27" Heavy Duty Nylon Base with Dual Carpet Casters