Also known by the name, Keratine hair, the Pre-Bond Hair Extension, which we make available, is a nice way to add wonderful length to hair. Our Pre-Bond Hair Extension is a quick and easy way to change the looks. We are Delhi based Manufacturer, Supplier and Exporter of the Pre-Bond Hair Extension. Availability Available in all length and Size from 8â- 36âWeight .0.05 grams, 0.07 grams & 1 grams each strands