This is one realistic looking (well, depending of the colour of course) clip-in extension, to set a highlight into your own hair. The 18 inches long extension made of heat resistant fiber is fixed to a 1,2 inches wide micro clip (total width of the extension is a little more than 1,5 inches). Its totally easy to attach this extension and take it out again. Many colours available: this is a violet and blue mix (standard T2420TTF2517).