- Size: One size • Elastic no-tie laces with elegant metal closure, eliminating the need for traditional knots. • Easy installation: simply thread the elastic lace through the metal buckle, adjust to the desired length, cut the excess, and tighten the buckle. • Weather-resistant and durable, made with high-quality nylon. • Suitable for everyone: children, adults, and seniors, ideal for activities such as running, walking, hiking, and cycling. • Contains small metal capsules, keep in a safe place to prevent children from swallowing them.