I have a few questions about clip-in hair extensions. I have looked at many different brands on the internet but was wondering if anybody has had an experience with them. For example, which brands would you recommend, or ones that I should stay away from? What does it mean by grams- I’ve seen 120-160 grams and I’m not sure what that is? Also what has your experience been with them. Do they actually stay in place? Are they easy to use. etc? I have super fine hair and I’m concerned that they will “slide” out of my hair. Any information/personal experience that can be shared would be greatly appreciated!!!