LED Light Shoelaces 1,three flashing models 2,battery included 3,OEM, ... shoelace with green ledlight up led shoelace,round elastic shoelaces,light-up LED colorful flashing shoelace,LED colorful flashing shoelace ,flasing ... lace have 1 battery last 30-80 hoursLight way1.keep light can last 30 hours 2. coruscate fast can last 60 ... work with you to solve any problem.Thank you. LED Light Shoelaces