LED Light Up Nylon Shoelaces by Lit- 50 Hours of LED Fun for Parties, Night Time Safety and Raves - Replaceable Batteries Each Lace is 47 inches of 100% nylon and LED wire Batteries Included. Easily replaceable. No Tools Required. 3 Light Modes: Always lit, slow strobe, and fast strobe. 50 Hours of Led Action! 100% Quality Guarantee: If you are not satisfied with this purchase, simply return it for a full A-Z refund!*