The item is a simple and practical pet dog cat LED blinker light safety collar tag, which is made of durable lightweight aluminum material for comfortable to wear, and powered by button to give off bright high-visibility red, blue and white flashing lights for easily spotting your pet when out or fields. The LED blinker light can make sure your pet is safe, allowing cars, bike riders and pedestrians to see your pet. With waterproof design and easy to operate, it is really a useful tool to find your pet. Features - Shell color: Red, blue, purple, pink. - Material: Aluminum alloy. - Size: about 2.65x1.2x1.2cm. - and Pet Dog Cat Puppy LED Flashing Blinker Light Safety Collar Tag. - Powered by 3 * button cell batteries (included), the safety collar tag can give off high-visibility flashing light (red, blue and white) for use. - Battery can last about 120 hours. - Easily spot your pet when out or fields. - The high visibility flashing LED will make sure your pet is safe, allowing cars, bike riders and pedestrians to see your pet. - Very shining, can be seen up to 1/2 mile . - Easy to operate: only swivel the metal casing clockwise to turn the LED light ON, and swivel it anticlockwise to turn the LED light OFF. - Comes with a carabiner, for convenient to carry. - Waterproof, but try not to submerge in water. Package list: 4 x collars