13-37P500D Deluxe Airgrid Back Drafting Chair Deluxe AirGrid Back And Mesh Seat Drafting Chair. Thick Padded Mesh Seat and AirGrid Back with Built-in Lumbar Support. One Touch Pneumatic Seat Height Adjustment. Adjustable Metal Foot ring. Nylon Base with Dual Wheel Carpet Casters. Free Ground Shipping (UPS / FedEx / Curbside) 13 Series collection Part of the Space Seating series Overall Dimensions: 21.25"w x 25.5"d x 51"h Seat Dimensions: 19.5"w x 20"d Back Dimensions: 20"w x 19"h Seat Height: 27.5"-32.5" Thick Padded Mesh Seat and AirGrid Back with Built-in Lumbar Support One Touch Pneumatic Seat Height Adjustment