[Sunny Hair Extensions Material] We solemnly promise that Sunny Hair uses real human hair, the hair is silky smooth, and the hair life span of 3-6 months (depending on usage and care methods). | [Blonde Nano Ring Hair Extensions Details] Weight:1g/strand,total 50strands,50g/pack. Use of nano beads: Outer Diameter: Approx. 0.12inch (0.29cm); Inner Diameter: Approx. 0.06inch (0.16cm); Height: Approx. 0.07inch (0.2cm). The nano tips hair extensions do NOT contain nano beads. It is suggested to install by professional hairdresser for the better show effect. We recommend 2-3 packs to increase the volume, and 3-4 packs to extend the length. | [Nano Ring Blonde Hair Extensions Advantages] Nano ring real human hair extensions is a more invisible and undetectable methods of installation. Nano ring is much smaller in size, which is much more inconspicuous and making the finish looking more seamlessly and natural. | [About Color Choice] There may be color differences because of different monitors. We provide professional color match service for you to choose the suitable color. | [About Style] Real remy human hair , NO mixed animal or synthetic hair. Can be straightened, curled, washed, restyled and be dyed-only to darker color. When you style your hair, the heating temperature should not exceed 180℃. [Warm Tip] Please let us know if you have any problems during the usage.