ROHO Contour Select - Wheelchair/Seat Air Cushion has a unique bucket seat configuration that uses ISOFLO Memory Control to provide excellent seat balance and stability. The high profile cells immerse the body into the chair for optimum protection. With a twist of the valve, each of the four air cushion quadrants can be adjusted without transferring the user out of the chair. The Contour Select comes in the high profile (4") cushion height only. It is ideal for individuals who are at moderate to high risk of skin breakdown, who need a large amount of postural support, and people who have fair to poor seat balance. ROHO contour select cushions offer shape fitting technology that protects the skin and provides high quality postural support.