Model Number: NW-SL024 Key Specifications/Special Features: 1. Material: fiber +plastic case2. Shoelace length: 80cm or customized3. Logo: customized logo print on it is ok4. Battery: 2*CR2032 included (can be changed when use off)5. Withlithium battery inside and it can keep on flashing for 30~80 hours.6. LED Color: red, yellow, blue, green, white, orange and RGB light7. You can use them to make your sport or running more fashionable and more safety8. LED shoelaceisunisex difference, it is suitable foreverybody!9. Flashing shoelaceis suitable for any kinds of Shoes, including running shoes, boots and skate10. ThisLED shoe Lacelights you up and lets you flash around in any night activity or event.11. Use ofLED shoelace: dancing party, pub, DJ, Concert event, outdoor sport, cycling and so on