【Specifications】Clip in hair extensions real human hair is with 7 different width pieces and total 16 clips per pack. 12inch-70g-5P 14-22inch:120g-7P 24inch:135g-7P for hair extensions including clips. 【Wear or Take out 】Clip in hair extensions are tool for adding volume and length. Anyone can wear or take out it whenever you want. 【Shiny and Fashionable Color】 There are various color human hair clip in extensions. There might be slight color difference between the pictures and hair due to different monitors. 【Double Weft Technology】 Unique stitches are used on the hand double weft to prevent shedding and tangling. 【Hair style and care】This product is made from real human hair. You can use a heating rod below 150 ℃ to shape it, or you can dye it from light color to dark color, but these behaviors will reduce its use life. Vivien Clip in Real Hair Extensions could help you to change your look and add thickness in a few minutes. Vivien hair extensions is real human hair, double weft is used instead of single weft. Double weft - more hair than typical extensions and don't fall out easily.And you could do it by yourself and with nobody's help! Specification Type: Clip in Hair Extensions Length: 12-24 inch Texture: Straight Hair Weight: 12"- 70 gram 14-22" are 120 gram/pack, 24"- are 135 gram/pack(with clips). Hair Life: 1-3 months even longer depending on good use and caring. Quantity: 1-2 packs for adding volume, 2-3 packs for adding length. It may be slight differences due to different light and monitor. The hair is processed, it can be dyed to darker color only. Using a wide-tooth comb. Use gentle shampoo, conditioner and cold or warm water to wash hair. Use the low heat when drying hair.