Double Air Traction Belt with Gauge Manual Pump

We find that, reducing pressure from gravity of upper-body, can observably relieve human lower back pain caused by most of disc disease, a patented air traction system was born. We call it AIR TRACTION BELT. It could be run as a "BODY JACK" for most of lumbar/cervical patients in their daily life. Just wear a simple belt, no operation, no expensive reduplicative traction apparatus, keep wearing, then pain relieved.