Invisible Wire Hair Extensions made of high-quality synthetic fiber, soft and comfortable, natural and fashionable, with transparent wire, can blend perfectly with your hair color. Damage-free, so your hair remains healthy with no tugging or pulling on the scalp. 1. Comes with 4 clips that lock the extension onto your hair securely with no slipping. 2. The s hook into 5 different notches, adjustable size to get perfect fit. 3. The wire is thicker and more elastic, not easy to break and not cause any pressure on the scalp. Sit on your head gently wedged on with an invisible transparent nylon wire. They are extremely comfortable in comparison to other types where you can feel the various attachment mechanisms in your hair. You can create a gorgeous style within a few minutes, easiest and quickest way to add your hair length and volume, can do it by yourself. Get beauty and confidence in a few minutes, Take on a new look immediately and no one will find your secret.