Product Specification: Type: Remy Wire Hair Extensions. Material: 100% Remy Human Hair Extensions. Length: 12inch, 14inch, 16inch, 18inch, 20inch. Weight: 12: 70g, 14: 75g, 16-18: 95g, 20: 110g. We recommend 1 pack for thick hair, 2 packs for thin hair. Color: Natural black Hair Extensions Texture: Straight, Thick from Top to End. Number of Clip: 4 Clips Number of Wire: 1 Wire. About this item More Comfortable & Natural & Lighter, Human Hair--Can Be StyledUnlike traditional hair extensions, this new wire hair extensions is no tape no glue, with transparent wire, can blend perfectly with your hair color. And wefts width is made according to measure head circumference which is 10.9inch. 100% human hair, you can style the hair according to your preference for many different occasions. Only 5 Minutes to Put or Take out Wire hair extensions is the easiest and quickest tool for adding volume and length. Anyone can do it. You can refer to our page description for wearing. Adjust size by tightening or loosening the standby wire. Hair doesn't move when you shake your head, which means you're wearing it correctly. Upgraded 7 Layered Hairpiece & 90 Degree Lace Corner Design -- No Shedding, Soft Our wire hair extensions has 7 layers hair weft, not easy to knot and fall off. More layered hair add the hair volume. Lighter and thinner lace hair net is more breathable and comfortable. The lace net is 90-degree curved design to prevent your ears from being rubbed by the weft. Double Fixed with Thicker Elastic Wire & 4 Clips--More Stable & No PressureUpgraded wire which is 9.25inch is thicker and more elastic, not easy to break and not cause any pressure on the scalp. Detachable 4 clips are more stable. If you don't need clips, just take out them. We offer extra 2 clips and 3 elastic Transparent lines for replacement: replace fish line is10inch, 8inch and 7.3inch. Its not suitable for people with very fine hair on the top or baldness as the wire may be seen. Best Ratio of Length to Weight & The Most Popular Color & Professional Lifetime Service Team12: 70g, 14: 75g, 16-18: 95g, 20: 110g. 1 pack is for adding length, 2 packs for adding volume. We have a professional design team to follow the most popular color trends.