? After Sales ? offers the RETURN or EXCHANGE service.If have other product problems please feel free to contact us and we will solve them for you within 24 hours. ? Tips ? 1.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 or refer to our second picture of the color swatch. 2.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. ? How to Apply ? Adjust the transparent wire to fit your head size before wearing,brush your natural hair,section off your hair at the crown, tying it into a bun at the top of your head.Apply the extension and blending it with your own hair,for more details, please watch our video or see the s below. ? Detailed information ? 100% Japan high temperature fiber (Heat resistance range: 300?-350? or 150-180? ) Can be curled or straightened.Package includes a synthetic hair extension,a rat tail comb,an adjustable transparent wire for replacement. ? Why choose it ? Invisible hair extensions have become incregly popular, it is light and comfortable, no clips, can be put on and taken off in minutes,helping you save time.