Skin weft is new technology in hair extensions! Made with hand-knotted human Remy hair on very thin mono-mesh based with Poly-Urethan coating. It is the most convenient, simplest, and speedy way to add extensions. Poly Urathane (PU)weft hair is like human skin, it is very soft ,transparent, and clear and not easily recognized when worn on the head. Just use Double face bond tape to adhere to own hair or purchase it with self adhesive attached. Price is for 3 oz. 6oz usually needed for average full head of extensions.