American Pride pre-bonded nail or U-TIP keratin hair extensions are designed to bond directly to a clients hair by simply using a hair extension glue gun. The shape of the keratin glue attached to the hair extensions is in the shape of a finger nail so that it can be easily applied to the hair. This type of hair extension application is for clients who wish to leave their hair extensions in for longer than a few weeks. With keratin pre-bonded hair you can leave them in until they grow through. Pre-bonded hair can be applied in both solid or highlighted colour depending on your clients needs. Pre-bonded Hair Extensions are connected to your hair with a small hand held applicator appliance which heats the bond at a low temperature. Every Pack contains 25 strands, 1 gram per strand.