The ROHO AGILITY backrests are designed to accommodate various body sizes and shapes. They can be easily adjusted – even when the individual is seated. Adaptable to virtually any wheelchair, the AGILITY back will stay secure and in position. AGILITY backs are extremely light weight and durable. The back shell is composed of aircraft-grade aluminum with durable, adjustable AIR FLOATATION™ inserts to provide unparalleled comfort.