Transform your hair in an instant with our easy to install Keratin Fiber Hair Clip-in Extensions. Our unique lace & lock clip-ins are ultra-safe to use with no damage to your natural hair. YELLOOW Keratin Fiber hair extensions feels and acts like human hair. The color & texture is so close, it even fooled the professional stylists in our test groups! Get a natural look of long locks at a fraction of the price with YELLOOW Keratin Fiber Extensions. Made in a multi-tone which helps the extensions blend seamlessly with natural hair.