I am trying to find out where I can but the polyurethane double tape strips. I have hair extensions at home, but do not want to use clips, as I have super fine and little hair. I have read that the tape on seamless method is the best undetectable one. Can anyone help me find out where to get the strips and also how exactly to adhere the hair extensions. THANKS SO MUCH!

Try looking in a beauty supply store or hair extension store for polyurethane double tape strips. If you can't find it in the stores, you might find companies that sell it on the Internet.