The I-Tip extensions is a cold fusion bonding method in which each individual I-Tip strand is bonded together to the hair using tube locks. The tip of each strand is secured by polyurethane, which makes it prevent shedding as well as bounce back to its shape after removal, making it reusable.The body wave is a soft, permanent wave that lasts and feels like naturally wavy hair would be.PLEASE NOTE: Hair color in images may differ from actual due to lighting, screen resolution, and settings. Product come delivered with color numbers only. Description of the hair color serves as a helpful suggestion of what the color resembles, which may vary depending on the individual. Colors may differ in tone and shade between different manufacturers.