Welcome to our shop! The shoelaces we offer are made of soft nylon and have a total length of 120cm. They are flexible, durable, and very easy to tie. These shoelaces have 3 fashionable modes: fast flash, slow flash, and continuous light. They are perfect for parties, night activities, safety, and all kinds of night life fun. Our beautiful high visibility neon lights shoelaces are available in five different colors: blue, green, pink, red, and yellow orange. Boost your visibility with flashing LED lights! These shoelaces will make you visible to drivers in peripheral vision and ensure your safety during night outdoor activities. The CR2032 battery is included and will give about 30 hours of continuous glowing or 60-80 hours of flashing lights. The battery is also replaceable. Note:1. Please allow small size error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.(Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service)Thank you for meeting me.I hope this helps you.Wish you a happy life.