Qingdao JMXY Hair Extension the main product hot selling nano human hair extension. Nano ring human hair extensions is a more invisible and undetectable methods of installation. Nano ring is much smaller in size, which make the finish looking more seamlessly and natural. Moreover, nano bead hair extensions can be reused. .Feel soft, covert and natural after using. No heat is required, making this a healthy method which is harmless to your hair.