... think of ~~~This LED Shoelaces is made with high transparent plastic material & optical fiber LED. It has high brightness, ... large logo position,Pass CE,Rohs,en71 certificateDescription:LED/mode: Optical Fiber LED, 3-mode (Normal -- Slow Blinking -- Fast ... : Lithium CR2032 button Battery (included)Material: high transparent plastic material with optical fiber LED.Color: Green , Red , Yellow , Blue , ...