DETAILS Canadian Chiropractic Association Certified A simple solution for the relief and prevention of back discomfort Extra tall version - provides full back support extending to the neck and head Patented "S"-shaped frame conforms to the contours of the back to guide the spine into correct alignment and place the user in a proper sitting position Scientifically proven to decrease pressure on the back by 35% and increase comfort while sitting Removable and adjustable lumbar pad offers additional lower back support or can be used as a neck pillow Lightweight and portable, turns any chair into an ergonomic seating system Ideal for all types of office chairs and industrial seating 17 13/16"W x 7"D x 30 1/2"H Black