1.light up shoelace with customized design 2.Nylon or High light-guide glass fiber 3.Waterproof or washable 4.CE,ROHS, ... Shoelace ♥ Item No.: YZG-BI Series ♥ Material available: nylon,High light-guide glass fiber ♥ Webbing color available: Red, Green, Yellow, Blue ... will be different with any one. ♥ It is good gift for children or any one who like sports. light up shoelace with customized design