Product Description1. Luminous Collar - This luminous collar helps keep small dogs and cats visible and safe in the dark with LED and TPU light guides and reflective nylon needles. It can be seen from almost 500 meters away. Drivers can see your pet in advance.2. Perfect for Small Pets - Perfect for small dogs like chihuahuas, poodles or cats. The total length is 12 inches and also has an adjustable buckle that you pull to the right size for your pet. Lightweight breathable nylon strap, suitable for small dogs to wear.3. Rechargeable Collar - This luminous dog collar can be charged with any other device for daily use via a USB cable. Batteries are not extra. All devices can provide 3-5 hours of quick flashing and 1-2 hours of constant glow every 2 hours of charging. No need to change the battery, energy-saving and environmentally friendly!4. Flashing Mode -- This lighted dog collar has two flashing modes: fast flashing and steady flashing. Change the flashing mode by clicking the plastic release button. The shiny glow-in-the-dark dog collar increases visibility and safety for your pet, making it easy to see and find in the dark.