HIGH PROFILE 4 HIGH. 18 inches x 18 inches. Customized fit through the simple push of a knob. The revolutionary ISOFLO Memory ControlTM offers shape fitting capabilities while the user is seated allowing quick and easy on-demand adjustment to maximize function. The QUADTRO SELECT Cushion allows for quick simple position selection for every user while seated. Stability is enhanced by locking the air into place in each of the four quadrants. Easy to handle and carry at just 3.8 Lbs. Separated air cells allow air circulation to reach the surface of the skin and provide a cooling environment. Includes QUADTRO SELECT Cushion two-way stretch cover hand inflation pump repair kit and operating instructions. Additional sizes available.