Open box item...package has been opened but unused * These invisible hair extensions have no clips, are lighter and simpler to wear, won't damage your hair and are easy to hide.  * 100% Japanese high temperature resistant fiber, can be curled or straightened. (Temperature range: 300℉-350℉ or 150-180℃)  * Put the extension directly on your head and use a rat tail comb to pick your hair to cover the extension.  Tie up the hair on top of your head, put on the hair extensions and spread your hair to blend in with the extension.  * Color may vary by monitor ,select a similar color based on your tail, it will look more natural. Hair color is sensitive to light, we suggest you choose the color in a place with good light Hair extensions may get tangled, get a spray bottle, put some conditioner in it and add water. Or just spray some water, it will prevent tangles to some extent.