1.Material:100% human hair 2.Color:24 colors can choose Note:Natural black is natural color,it can be dyed.Jet black is the color dyed to black,not natural color 3.Size/Weight: 12"/100g , 14"/120g , 16"/140g , 18"/150g , 20"/160g , 22"/170g , width 25cm/10" Measure the length: 1. Strenth the hair into straight,no curl,not wave,measure the length in the state of straight 2. Then put a ruler in the root of the hair 3. And put the other side of the ruler point to the top of the hair Are you still struggling with your hair volume? Want to have long hair right away? Want to be the center of attention at the party? Our hair extensions which are made of real Brazilian original human hair may help you. They are more natural, more breathable and more durable than synthetic hair. This hair extension is very easy to wear. Just put the halo crown on ,use a tail comb to pull hair over top.In less than a minute, you will get the length and volume immediately. If you have any questions ,pls feel free to contact us .Sincerely hope you have a nice day .