LED Nylon Leash (Flashing or Steady Lights) + Spare Set of Batteries 2 full sets of batteries included (4 x CR2032) Bright LED leash with 3 blinking modes (fast blink, slow blink, and continuous) Durable nylon and polymer core are lightweight, flexible and strong LED strip is 12" long and is right below handle Leash is 50" long x 1" wide and is a perfect addition to night time walks