The Stamina Backtrac Back Massager is a lower and upper back massager designed to help alleviate muscle tension, improve spinal joint mobility, relieve tender trigger points and gently stretch the spine. Invented by a chiropractic physician with over 30 years of experience, this self-massage tool provides a deep, invigorating massage and more. The Stamina Backtrac Back Massager has 30 strategically placed individual massage rollers that work together to provide a deep, invigorating whole back massage. The rotating spheres provide acupressure to reduce trigger point tenderness. The simple act of lying on the spherical rollers helps trigger point tenderness to fade to allow improved muscle function. The massage tool is designed to also encourage gentle motion and traction in the spinal joints. The movement is totally controlled by the user to stretch discs, ligaments, muscles and other soft tissues of the back and neck. The user simply uses their legs to “push” their body toward the large neck rollers and across the top of the BackTrac, and uses their legs to “pull” their body toward their feet. Muscle spasms are soothed by stretching the intervertebral discs. Muscles in the abdominals and hips that support the spine are gently exercised in controlled movements. Users will need to be able to get down on the floor and back up safely to use this product. The Stamina BackTrac Back Massager is lightweight, portable and easy to use at home for effective deep self-massage to improve muscle function and gently stretch the spine. Stamina Backtrac Back Massager from Stamina Products Inc. on Vimeo . Stamina Backtrac Back Massage User Guide Stamina BackTrac Back Massager Specifications: Measures: 28 inches long, 17.25 inches wide, 3.5 inches high. Item weighs: 3.5 lbs. Materials: Steel, aluminum. Model: 55-1420. Weight Limit: 350 lbs. Includes: Stamina BackTrac, user manual. WARNING: The California Office of Environmental Health Hazard Assessment Proposition 65 Warning Cancer and Reproductive Harm www.P65Warnings.ca.gov .