The Reverse Hyper®5356,359 and 6,491,607b2 decompresses the spine and has no vertical compression on the spine at all. This simple device allows for dynamic strength development in the concentric phase, while serving as a rehabilitation mechanism in the eccentric phase by gently stretching and depressurizing the spine and creating, in essence, an internal pumping mechanism, filling the spinal column with spinal fluid and the low back muscles with blood .Anyone who has injured their back knows that the pressure needs to be relieved and circulation restored to the injured area in order to rehabilitate. this can be used 3 to 4 times a week for therapeutic work but have also had clients that used every day with light weight to get tightness out of lower back area. a instructional tape comes with every unit. but if ever a question arises on its use please call we would be glad to help you.40″ x 48″ and 42″ high Welded frame unit to take the abuse of heavy weights plus 24 hours a day use. This unit is used in most commercial gyms and college facilities. Standard colors is white frame/black pad but can be done in any custom color that is needed.This machine holds Olympic platesWestside BarbellHome of the Patented Reverse Hyper614email@example.comPatented equipment, gym packages and complete strength facility installations.