This stool has a Cellular Suspension back material that is breathable and allows the back to provide flexible and continuous support. The Harmonic tilt provides continuous balance and lets the body recline naturally, pivoting at the ankles, knees, and hips. The stool has a 5-star base and a 20″-diameter height-adjustable foot rest. It has an adjustment range of 23.5″-33.5″. The list price is $1,182-$1,227.