There is probably no need to describe this device. It has made the infomercial rounds for a while now. The user lies on his back, raises his legs at a right angle, and rests his calves on the Back 2 Life machine. What follows is a gentle traction, I guess. The machine lifts the users legs a few inches up and down, and this in turn stretches the lumbar.
In the truest spirit of ad copywriting, Back 2 Life is careful not to make direct medical claims.
But, as someone newly aware to the importance of foramen height and spinal stenosis, I am prompted to ask your opinion. I doubt that Back 2 Life can do much harm. Can it be of any good?