Climbing from 27.5 to 32 inches at the seat, this stool meets drafting tables and standing desks where an ordinary task chair falls short. A footrest ring 15.5 inches across sits 13.5 inches up so the legs have somewhere to rest at that height instead of dangling. The 15.5 inch round seat is 2 inches thick with 50D sponge under breathable mesh that resists wrinkling and stays cool during long painting or sketching sessions, and its subtle contour follows the body. A low 16.5 by 8 inch backrest supports the lumbar area without blocking the elbows. A heavy-duty gas cylinder and reinforced 5-claw base carry 350 lbs. Overall the stool takes up 20.5 by 18.5 inches and weighs 17 lbs.