Specifications: Vietnamese hair, standard double drawn quality. 100% real human hair. 100% remy hair (no tangled, all hairs are same direction from top to bottom). 2% rubberband included. 0% short hair strands upto 20cm (except sizes 20cm, 25cm, 30cm, 35cm and 40cm). Tail of bundle (5cm range from the bottom of bundle) is about 15~20%. All hair strands are realigned to the top of bundle (suitable for weft, hair extensions) Quality of hair: thin, strong, soft and silky. Color: all colors. Texture: straight, wavy, curly, yaki... Easy use to: Manufacture wigs and hair extensions... Other applied in fashion industry, beauty industry... depending on production technology and usage purpose.