Buy Hair 'n Flair Hair Extensions - Hair 'n Flair Capelli di' Coloro 100 Human Hair Colored Extensions - 18 Blue. How-to-Use: Open the clip on your hair extension. Locate the area where you want to insert. Part straight line about 1/2 inch from part. Comb end of clip on base of hair near parting and press down on comb. Comb your own hair down over the hair extension and gently comb to blend hair.