These pre-bonded hair extensions come with bonded keratin nail tips. They are easy to use and apply using the fusion heat connector technique by melting them onto the natural hair. The u-tip extensions are made with high quality Chinese Remy hair that ensures all the hair cuticles are running in the same direction and do not get tangled. They are great with all hair types for a true natural look. You can wash, curl and straighten them just like you would do to your natural hair. With correct care these extensions can be used for two to three months without any difficulties.