These Twist Buckle Quick Shoe Laces can get the job done with a single twist and take away all the hassle and frustration while performing activities or just walking down the street. Advanced Material The shoelace is made of high-strength fiber, which is strong and reliable. The ball can withstand a pulling force of 265 N. It can stretch more than 10,000 times after repeated testing and is still durable. Widely Suitable This product is suitable for more than 91% of shoes on the market. Most sports shoes on the market can be fitted. You can use it, whether it's a child or the old or a young person who loves sports, and the color is Beautiful and stylish. One Size Fits All For kids and adults, it's quick to set up and easy to use. Each pair is suitable for tying a pair of shoes. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.