The Back Saver Lumbar Supporter is really a back saver!  It creates the perfect posture with an ergonomic design that is simple and versatile. Just attach the elastic band to any seat back, adjust the height and you have an instant mesh back support that offers much more support than a back cushion or back pillow.  Weighing less than 12 ounces makes it very portable.  Great for the house, the office, on lengthy road trips, basically anywhere.