Yoga Swing - Yogena Inversion Sling (Green) Made from high tenacity parachute nylon and seatbelt polyster Weighs only 5 lbs and comes with carrying bag; easy to assemble Includes 4 carabiners for safety (12kN each), patent pending versatile design FDA regulation No. 888.5890; class I exempt device (non invasive traction component) Spinal decompression device, relieves back pain caused due to common disc problems