Hi Baldingsucks,
Welcome to the forum! Hair clips are small clips used to attach a hair system. The clips are sewn into the perimeter of a hair system and clip on to your existing hair in order to secure the system. The downside of this method of attachment is that it pulls on your existing hair and you could lose that hair too. It's called traction alopecia. Only a handful of our customers request clips. Almost everyone uses either tape or glue to attach. Another downside to the clips is that although they're not visible they are detectable to touch--you can feel them.
Regards,
John