I bought clip on hair extension at a beauty supply. But, mine is not like Jes Simpson one, which already made and done. Mine, I have to cut the length into 2 inches weft, 1 inch, etc..... and attach the clip by yourself, then put it on your hair. I have no idea how to cut the length. I bought the 18inch long hair. Any salon in the bay area or San Francisco ??? Plus I have to trim the ends for layers. The hair is just flat wavy long hair.