20 INCH INVISIBLE EXTENSION by Hairdo is an invisible halo hair extension, designed to create stunning length and volume instantly. Made to seamlesssly blend with your natural hair, this clip-free extension slips on like a headband for a flawless look. Crafted with Tru2Life® Heat-Friendly Fiber, it allows for versatile styling with flat irons, curling tools, or blow dryers up to 350°F/180°C. Each hand-blended color features 7-11 shades for a natural appearance that complements any hair color. Perfect for effortless, natural-looking hair enhancement.