18" Hair In Clip In Hair Extensions by Ellen Wille is a human hair 10 piece extension set that will add glamorous length and volume in an instant. These stylish clip in hair extensions are from Europe's No.1 brand in hair extensions - Ellen Wille. They can be put in and taken out in a matter of minutes. The Ellen Wille Power Pieces collection are affordable, lightweight and easy to attach... simply clip in and go!