Specifications: Skin-Weft is hand made with Chinese Remy hair on very thin mono-mesh based (with Poly-Urethan coating). The width of one strip is 0.7cm ,the each piece is 38cm long . The length of hair is from 14 to 20 inches. This extension is seamless without bumps when it is completed. No adhesive is used. No clips or chemicals. Fast, easy and profitable way of applying extension. (six 18-inch-wide wefts per pack)