Description:With Elastic Line Nylon Wire Clip for Hair Extensions HairpiecesEasy to use,different size suit for different head circumference.3 Pairs/set.Material:Cloth+Plastic+ LineSize chart:XXS Size:approx. 22 cmS Size:approx. 25.5 cmXL Size:approx. 28 cmHook Size:approx. 2×0.8 cmPackage Includes:3 Pairs Hair Extensions Line(7 Pack)