ComfortableThe Lace Set is made of elastic cords with metal screw caps,they are flexible while getting your shoe on and off. These shoelaces with high elasticity are adjustable and can stretch to provide a perfect fit, improving your foot and shoe comfort. Save TimeYou can get your shoe on and off in seconds. You only need to install it once by the metal screw caps and will never need to tie it again, which not only save your time of tying the traditional shoelaces, but also solve the problem that your shoelaces could be loosened during walking ,running, hiking and so on. Elasticity Laces The total length of the shoelace is 100cm,which can be stretched to 150-170cm,as the shoe lace features as elasticity .you can adjust your shoes to your individual needs with these elastic laces. No more shoes that are too tight or too loose. Suitable for Everyone A time-saving option for athletes, an easy-to-use alternative for children and a convenient choice for the elderly and physically challenged. Unintentional loosening of the laces is impossible. Precautions This product contains small metal capsules. Please keep it in a safe place to avoid ingestion by infants.