... usually bought from detail stores or supermarkets2. Battery life:Shoelace flashing light mode: long bright flash,slow flash continuous constant ... , market, a large space.4. Quality:LED fiber optic light shoe, is optical fiber, and better quality than the EL luminescent shoelace ... Shoelaces compared with the EL cold light:LED fiber optic light shoe, is optical fiber, the quality is better than the EL ...