Lo-Bak Trax™ is the new, portable, spinal traction device that helps you ease back pain in the comfort of your home. Simply lie down, pull up your knees and push away the pain! FDA-registered 510K Device for relief of low back pain; degenerative disc disease; spinal degenerative joint disease; spinal stenosis; herniated disc; spinal curvature due to tight muscles, muscle spasms and sciatica. Great for men and women. Steel. 22 1/2"L x 6"W x 8 3/4"H. Consult with your doctor before using.