MaterialsLazy shoe laces are made of elastic rope and polyester materials, and there are 2 metal links on the elastic laces, which are of good quality and durable.Easy to UseElastic No Tie Shoe Laces Only need to tie the laces and tighten the screw lock, knot, tighten the screw lock, fasten once, and never tie the laces again, which is very convenient.Unique Locks SystemYou don't need to worry the shoe laces being loosen frequently, saving the time of tying the shoelaces.Fit All Shoes and Size No Tie Shoelaces measure 100cm/39.37inch in length, adjust the length to fit your shoes well.Easy to MatchElastic Shoelaces can be used with sports shoes, casual shoes, and can be used in all seasons. It is very suitable for children who cannot tie shoelaces. It is also very popular among adults, older people, and runners.Specification:Material: PolyesterSize Chart:100cm/39.37inchPackage Includes:1Elastic No Tie Shoe Lace(2 Pack)Note:Please allow slightly errors due to manual measurement and different monitors.