1. Durable material: The product is made of polyester material, which can withstand greater tension, making the shoelace firm, durable and elastic, helping to reduce the pressure on the foot and giving you a more comfortable feeling. 2. Replacement of shoelaces: The product is a single shoelace, which can be used to replace lost or damaged shoelaces to avoid the situation that shoes cannot be worn due to loss of shoelaces. 3. Scope of application: The product is a single-layer flat shoelace, suitable for various types of shoes, and can be used as an accessory for shoes, very suitable for athletes, runners and other people.