This hypoallergenic hair chain adds an instant green colour It also has genuine Swarovski Crystals attached to it They can easily be attached to your own hair with the help of our unique patented application threader method Blinx Bling crystals are easily drawn into the hair which also makes them easy to remove & are reusable No glue heat clips or grips therefore these crystals will not damage your hair Can be used on long short thick or fine hair