12Inch: 80GR Net Weight, 100GR with Clips; 14-18Inch: 100GR Net Weight, 120GR with Clips; 20-22Inch: 120GR Net Weight, 140GR with Clips. Usually one pack is enough for a full head. If you have a thicker hair, we recommend 2 packs. Clip in Hair Extensions Detail Clip in Hair Extensions are the first choice to add length, volume and color to your own hair! They can change the way you look by giving you longer, fuller hair in minutes. Because of this, they are the most popular hair enhancement method among stylists and home users. More Colors in Full Shine Clip in Hair Extensions Some Tips About Real Hair Extensions Clip in Human Hair How to tell 100 human hair from synthetic one? When human hair burning, you will see white smoke, then it turns into ashes.