This isn't just a machine to hang upside down. It's the Invertrac! It’s my Hang Gym! Core strengthening... abs and lower back muscles. Decompression of the spine and discs to prevent and or correcting spine and disc problems. Hanging upside down is the FASTEST way to PAIN RELIEF! If you’ve seen my videos you know what I’m talking about. Like the video of Todd Marler who was scheduled for spine surgery but never gad it done. This is an investment in your spine which is your lifeline and an investment in your health. Every home should have one of these instead of a treadmill or some other exercise machine. Now taking names to be placed on the waiting list!