... (the shoelace is uniform and soft light). 1,Suitable for roller skate shoes basketball shoes football shoes children's shoes [casual shoes ... , third light-emitting mode: a long bright, second, third slow flash flash3,can bear tension: 3KG4, waterproof, walk a high brightness ... the middle button in a long white, bright, press two flash, press three times slow flash, press the four times is closed.