Structure Modern Drafting Stool maximizes design and color for a great sitting great looking standing height chair. The white back structure acts as a breathable spine that can be ordered raw or with a colorful slip knit back covers. See the gallery images for the 9 knit back cover color selection. The seat can be upholstered in any fabric, faux leather or leather in any color. The seat features ergonomic control and seat pan design for maximum comfort. Task arms are study and reliable. The Structure Modern Drafting Stool makes a bold statement surely to capture you attention and imagination. Chairs and drafting stools are built to order on about a 6 week lead-time. Matching Desk and conference chair models are offered. Sizes: Tall Drafting stool 19″ w x 18″ d x 23″-32″h . Back 20″ w x 24″h on a 28″ base. Medium height drafting stool seat height range 19″ -28″h. Desk height chair seat range 16″-21″h. We always recommend ordering chairs with arms to support the lower arm preventing extra strain on the upper shoulder and back.