Helps to support the lower back.

This Adjustable Lumbar Support Cushion may reduce lower back pain.  It is easy to carry, inflates in seconds and is ergonomically designed.  Dimensions are 17" wide x 11" high x 3 1/2" deep.  Adjust the position of the cushion and secure with the attached belts for maximum comfort on lumbar area.  Adjust the thickness of the cushion by inflating or deflating the air bladder.  Great at the office or at home.