Hair Material: 100% Low Temperature Kanekalon Fiber,This hair is so soft, bouncy, and very light weight . it is so soft，pretty & dont tangle & dont look old after a long wearing time. | Attribute: 20inches long, 1B Color, 110g/pack, 24 Roots/pack, 6 packs/lot, enough for a full head. | Hair Advantage: Follow the fashion trend, Try new styles, Show your own beauty so easy. Because of the flexibility and texture of the hair it gives it a more authentic look. | Why choose us ? You can see the top of our hair is very tight, not open or shed easily. We make it through special procedure. So our hair can work easily and use for a very long time. | Fast delivery: Shipping by Amazon(FBA), usually 1-3 working days delivery.