NO NEED BINDING for CONVENIENCE- No Worry of tripped over by untied laces. When you use the elastic shoe laces, just slip the lock stopper with a slight pull on the rubber cord which will get stuck firmly by the lock with strong stainless steel springs, not easy to slip and save you time. DURABLE and FASHION - Made of high-stretchy rubber and compact polyester, makes the shoe laces more elastic and durable. It will provide better comfort for running. And the fashion no tie shoe laces would be popular for kids or adults. FIT for MOST SHOES - The size fits most of shoes. The elastic laces is universal by design and is crafted to work with any shoe for running or other athletics. It is suitable for your sneakers, work shoes, boots, and even dress shoes. VESONNY SPORTS GUARANTEE: we guarantee the use on a single pair of shoes. If you have any reason that are unsatisfied with this elastic shoe laces within the first thirty days, return them for a no questions asked return.