Clip-in 7 piece: The Clip-in system is easy to use. With a comb or your finger, separate a section of hair with a hair clip. Clip up the rest of your hair above your head. Align the strip of the extension at the root of your sectioned part, and slip in all the pressure-sensitive clips. Snap shut to secure. Remove the hair clips holding the rest of your hair to release your own hair over the extensions, and style as desired.