Outdoor Sports LED Luminous Shoelaces Colorful Night Shoelaces Cheer Props Fluorescent Light Shoelaces Luminous Shoelaces RopeFeatures:Control With The : This light-up shoelace has four modes: fixed beam, slow flashing, fast flashing and closing Wide Application: Skating sports, outdoor sports, night running, a large festive party, concert, promotion, cheer, holiday promotions, birthday gifts, strange new products! Normally speaking, shoelaces can continue to for 40-60 hours (steady-on mode time will be slightly shorter).The battery can be replaced by yourself, convenience stores, supermarkets, and watch shops have to sell the corresponding battery!Product Description:Specification:Weight:50gMaterial: webbing+ABS +LED lightSize:103*1cmPackage List:1XstorageNote:Please allow slight error due to the manual measurement. Thanks for your understanding.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real . Please take the real one as standard.