... 1.Fiber optical led glow light shoelaces 2.Material: TPU,ABS,LED 3 ... is optical fiber, and better quality than the EL luminescent shoelace, glow shoelace fiber can withstand the ... ROHS certification, quality and stability.5. Shoelaces compared with the EL cold light:LED fiber optic light shoe, ... price, fiber optic cold light shoelaces are much cheaper than the EL. Since 2032 button battery voltage ...