I have been using the quick extender pro for almost 2 months now and have not gained an inch! I am sure i am using the device exactly as you should be and for as long as i can every day and its getting me nowhere! I do not recommend anyone get the quick extender! its a complete scam. It is such a cheap device you don't even get the feeling you are doing anything while you wear it an it leaves blisters if you wear it too tightly. I was convinced it was effective after reading countless quick extender pro reviews but i guess its a rip off device! probably a knock-off! read full review »