Balmain Prebonded Fill-in Extensions Human Hair 55cm 50pcs are made of high quality 100% Human Hair. The hair is connected to the natural hair by using a small keratin bond and connector tool. The natural straight textures ensure an instant integration with the natural hair. The special Fill-In Value Pack edition (50 pcs.) equals a basic volume service. Contains: 50 pcs. (length: 55 cm), 2 protectors.