Vietnamese gray hair, grey hair from old lady

Specifications: Ratio of gray hair in each bundle is about 30 70 (virgin hair bundle from one woman) 100 real human hair, no henna. 100 natural hair (no treatment with chemical, not dyed, not bleached). 100 remy hair (no tangled, all hairs are same direction from top to bottom). Only washed with shampoo. No lice, no nits. Texture: straight, very light wavy. Easy use to: Make weft hair, Bleaching and dye, Change texture from straight to wavy, curly or vice versa, Manufacture wigs,