5 pairs / $12.99   free post
 
keep children's safety
 
used in any sneakers , simpler to wear and take off; springs to fix in place; 
Easily used; perfect for any sport; 
 
Each pair incloud:  elastic laces*2; spring buckle*2; clip*2
 
COLOR:
BOY:  BLACK*2, WHITE, GRAY, LIGHT GREEN
GIRL: BLACK, WHITE, PINK, DARK RED, YELLOW
 
Material:  Cotton+ Latex silk
length ： around 100cm
Diameter: 0.3cm