Quality: Made of high-quality nylon, strong, wear-resistant and durable.One-time installation: Put on your shoes and start walking. It's super easy and fast to put on and take off your shoes. Elastic shoelaces can help you quickly and easily adjust to a perfect fit. color matching: three colors of black, white and gray, which can be matched with shoes of various colors.Suitable for everyone: the best choice for children and athletes, a convenient choice for the elderly and the disabled.Suitable for all occasions: very suitable for daily life and sports and leisure activities such as fitness, running, triathlon, yoga or hiking.