led shoe lace 1,three flashing models 2,battery included 3,OEM, ... you will receive fastest response Product detail Information: NameLED shoe lace,Flashing LED laceMOQ100 pairs(mixed color)size800*2. ... battery:CR2032 button lithium battery each shoes lace have 1 battery last 30-80 hoursLight way1.keep light can ... feedback, our Skype ID is :glf8002,we will work with you to solve any problem.Thank you ...