A compact battery operated hi-visibility pet safety flasher has been designed to keep dogs safe and insight when walking at night or in bad weather conditions. Simply attach to your pets collar, twist, and it will flash with bright red LEDs so you can keep an eye on your pet at all times. The flasher comes with 3 x AG3/LR41 batteries included which are easily and affordably replaced. Water resistant, this flasher is visible for up to half a mile! Super bright LEDs.Clips to pets collarsVisible up to half a mile.Water resistantRequires 3 x AG3 (LR41) batteries (included)