Using Clip-Ins is an easy way to create instant length and volume to ones natural hair. 1 set of clip-ins is made up of 6 pieces. Each piece has 2 tracks for quality and durability. 1 set of clip-ins are recommended for fine or relaxed hair. 2 sets of clip-ins are recommended for someone with short hair, thick hair, a larger head, or if you just want to create extra fullness. I would also recommend 2 sets for lengths 20" or longer. Each set comes in a natural brown color. The clip-ins can be colored but I would recommend going to a professional to do so. Please DO NOT sleep in your clip-ins overnight! It can cause breakage. Take them out and reinstall daily.