Permanent improvement observed in a recently published study 90% of subjects aged 3-72 months obtained correction of between 3mm and 10 mm after a period of 12 months. You will see many other options out there, but nothing like this one. I can’t say enough about how happy I am with this. Thanks again Mark! Mark has clearly thought through the requirements for staying legal by driving and parking with both front and rear plates attached. A requirement in California, and strongly enforced in areas where cameras are used to verify FasTrak toll activity. He has produced a solution which is both easy to install, makes no alterations the car, and is simple to use. Amazingly, these hypoallergenic correctors can remain securely in place for up to 7 days if correctly applied. You can carry on with your life as normal and enjoy all your regular activities such as swimming.