Balmain Silk Doublehair Weft 55cm is a patented, reusable weft extensions system made of Silk Protein infused 100% Human Hair. The 9cm wide wefts each contain three layers of hair which allow you to create instant volume and length with a minimum number of applications. To ensure invisible integration and comfortable wearing, the wefts are fastened under a layer of extension hair with either clips, rings or keratin bonds. Contains: 1 pcs (width: 9cm, length: 55cm).