Petsport Bling Bling Blinkers provides an easy way for you and your pet to be safe and to be seen on nighttime walks! Featuring a bright LED light thats visible for up to a 1/2 mile, the Bling Bling Blinkers attach to your dogs collar and blink in a fun and safe way.Bright LED light keeps you and your dog visible for up to 1/2 mile3 batteries pre loaded with 3 extra batteries includedWith three batteries preloaded and three extra batteries included, this long-lasting collar light provides safety