Nail tip or 'U' tip hair extensions are pre-bonded with high quality keratin glue which has been formed into a U shape at the ends. To apply to the natural hair, nail tip extensions are melted with a heat connector to form a bond. The glue is perfectly safe and does not cause damage to your own hair. Our pre-bonded extensions are available in human hair, ranging from Grade A to the top quality Remy human hair. With a great range of colours to choose from, you are sure to find your perfect match.