This Vibralite synthetic fiber 10" Clip-in Straight Extension adds volume to shorter hair and transforms long hair into a to-the-shoulder bob. Now any woman can easily and affordably change her length and/or add volume to her own hair with HairDoTM Vibralite Synthetic Clip-in Hair from Jessica Simpson and Ken Paves. All HairDo™ Clip-in Extension Systems consists of one multi level, contoured piece that creates an easy, fashionable style without the hassle of working with several individual wefts. SIMPLE: Affordable, lightweight and easy to attach, these virtually undetectable extensions can be put in and taken out in a matter of minutes.