The hair what you seeing above is a loose one and its not attached to a weft track. This hair is not only used for bonding and braiding, it is also used for a variety of other purposes such as creation of Indian wigs, lace front wigs, braids, keratin tips and clip ins. Bulk hair can also be bonded to the natural hair, with the help of clips and adhesives.  Customers who choose to buy bulk hair often go for a combination of hair textures and hair sizes as part of their order.