Created by an orofacial pain specialist, the gentle jaw is an easy-to-use, non-invasive passive stretching device for chronic jaw and TMJ pain: no drugs, no prescriptions, no exams required. The gentle jaw is made in the USA with durable medical-grade nylon from a natural and sustainable source. Each gentle jaw kit includes 3 Gentle Jaw sizes: small, medium, and large to fit you best, (1) carry case, (1) range of motion measure scale, and easy to follow use instructions. Each gentle jaw is packaged in a certified clean room in California, so it is ready to use straight out of the box. Use the gentle jaw several times a day to give your jaw a comfortable stretch and see results in as little as a few days. See why we say "gentle jaw is like yoga for the jaw."