These clips are likely used to fix a hair system to the side hair that is the permanent hair that never is lost on every man who has genetic balding. I believe that he uses a very expensive lace hair system which is glued in the front and attached with clips on the side and back. That would mean that there are three clips used for side and back security. This photo shows the existence of one of those clips. The fine frontal hair it attached to silk lace which is then glued on a shaved or bald frontal scalp.