ITERY Dog Collar, LED Flashing Lights Dog Collar Pets LED Flash Collar (Yellow, M) With the led flash collar you can find your pet at night easily LED light for 4 modes: slow flashing, fast flashing, on and off. Adjustable length: 11.9-18.9 inch Width: 1 inch 30 hours of steady light Cute pattern and bright colorlooks nice and easy to see.