FastEngle X'mas LED Nylon Shoelaces Light Up Shoe Laces with 3 Modes in 7 Colors Disco Flash Lighting the Night for Party Hip-hop Dancing Cycling Hiking Skating Christmas 1 pair of 41" nylon shoelaces with light emitter Suitable for any kinds of Shoes, including running shoes, boots and skates. Batteries are included, lasted for 30 hours. 3 light modes : stay on , blink slow , blink fast Real shoelaces are easier to be tied.