Wildest Dreams full head clipâ€“in extensions are 100% human hair extensions. The hair is of the best quality and can be used with straighteners and curlers, just like regular hair. The full head packet includes 4 large strips (3 Clips), 2 medium strips (2 Clips) and 4 small strips (1 Clip). The maximum length of the extensions is 22". Perfect for adding volume to your hair.