The 6-Finger Silicone Clips has a small comb that help to secure hair pieces to natural hair areas. The comb helps the clip to attach very securely. Made to be used on wigs or on clip in extensions. They have a small piece of silicone on the back to help the clip stay in place when attached to the hair system.
When attaching these clips to the hair system, the silicone side should be against the unit. The comb should be facing the center of the unit. Clips are sold by the dozen.