Empire 7 piece Clip In Straight 18″ #613Sensationnel Empire butterfly clip in straight 7 piece solutionLace weft: Comfortable and thin breathable lace weft designErgonomic: Flex design Butterfly clip ins that strongly grips hair from side and contours to shape of headHuman hair: 14,18 inch straight Full human hair extension able to curl volumize and heat styleEase of use: EZ to install re-install wash re-use in minutes with 3 easy steps Section Clip Blend