<b>Specifications:</b><br> Material: nylon laces<br> Light Source: LED<br> Weight: 1.28 ounces<br> Size: 0.39(inch)*47(inch) <br> Powered by : 2*CR2032 button cell batteries of each shoelace (included) <br> <b>Tips: more than 40 hours stay on lights, 60-80 hours blink. The battery can be replaceable with 2 model CR2032 if it runs out.</b><br><br> <b>Features:</b><br> It’s a great choice as a gift for family or friends! <br> Cool style makes your shoes unique, make you become a good dancer. <br> Reflective in all sides, with multiple flash mold: quick flash, permanent bright. <br> LED shoelaces light up your "kicks" and let you break it out on the dance floor in style. <br><br> <b>Suitable for different occasions:</b><br> Perfect for Concert, Night Activities, Weddings, Mardi Gras Party, Halloween, Raves & Celebrations, Christmas, Outdoor events, Holidays, Clubbing, EDM, Disco, Hip-hop Dancing. <br> Great toys for Kids Party Supplies, Easter Basket Stuffers, Birthday Party, School Classroom Rewards, Carnival Prizes, Pinata, Easter Party, Stocking Stuffers, Goody Bags. <br><br> <b>Instructions for use: </b><br> 1.Remove the insulated piece and ensure the product is not damaged. <br> 2.Press the middle white button for 3 different light settings. <br> 3.Please turn off it to extend its use cycle when you do not use it. <br><br> <b>Product details:</b><br> Durable, soft and comfortable. Easily tied and fashionable style. <br> Batteries are putting on the cap, so it is safe for everyone. Please do not put the button in the water. <br> <b>If one of the shoelaces does not light, the LED wire inside may be broken. You can also use it as a regular shoelace.</b><br><br> <b>