Welcome to our shop: XNCHWe promise to make the best products and provide our customers with high quality products! If you have any questions, please contact us in time, we will solve the problem in time within 24 hours. I wish you a happy life!hair Material: 100% human hair; Item size: 25cm/10in , 30cm/12in , 35cm/14in , 40cm/16in , 45cm/18in , 50cm/20in , 55cm/22in , 60cm/24in , 65cm/26inHair weight: 100g per packHair pack: Each pack of extensions comes with 20 clips, each clip contains 5 individual extensions for a total of 100 extensions per pack. (6D HAIR EXTENSION ONLY, NOT INCLUDING 6D HAIR EXTENSION TOOL)6D hair extension system features:1.Do not use electricity, environmentally friendly2. No tapes No glue No chemicals No clips3. 20 minutes installation for the full head 4. super easy to use itTraditional hair extension treatments take a lot of time, especially when using micro or nano-pearl / link extensions.With the 6D hair extension device you can perform the entire treatment in 30 minutes!With the help of specially made hair extension holders, you can use the 6D tool to add 10 extensions at the same time, which saves you and your customer time.With 100% real human hair extensions, your customer will not only love the experience, but also their new look.