Set of 3 LED Night Light Circular Pendant Decor Clip-on for Pet Dog Collar for Wholesale Set of 3 (Red, Blue and Green) colors for each of your dogs or just change for the stylish Simple push On / Off button. Batteries (2 Coin Cell, 2016 3V) include, easy-to-replace Clip on, lightweight, durable to your four-footed friend's collar- visible over 1000 feet. Multi flashing modes: press button once for a steady glow- twice for continuous flash3 rd. for slow flash. Weather resistant. Secure stainless steel spring clip easily clips to the D-ring on your dog's collar.