Looking for a beautiful and long-lasting cold fusion bonded extensions. our straight i-tipped/micro ring hair extensions are tipped with our durable and clean melting blended glue. these hair extensions are also known as permanent hair extensions and semi-permanent hair extension. these hair can be bleached up to color (make sure to use professional services for bleaching). you can dye the hair. more than a year after proper care. installation need help of professional hair stylist. pre bonded stick i tip fusion human hair extensions can add hair length and volume instantly.