Pawow LED Dog Collar - Keep Your Dog Visible & Safe - TPU Flashing Light-Up Night Safety Collar for Large Dogs, 6 Colors 2 Size LED lighted dog collar lets you and your dog be seen in the dark by cars, cyclists and other dog owners - black dogs especially can be almost invisible at night when crossing a street - don't take chances with your precious pet - protect your pooch on your early morning or late night walks 3 setting modes: always on, rapid flash, slow flash, 6 LEDs with reflective strap on the webbing provides greater visibility than a simple reflective dog collar or tag Made from high quality TPU, weather-proof, durable, fully adjustable lets you find the perfect fit for your dog's neck. Sturdy metal D-ring allows you to securely clip on leashes, leads or identification tags for your best friend's walk or puppy training session so you can keep your dog safe No need batteries, rechargeable via USB port - how to recharge, simply connect to devices like Tablets, Laptops, PC's, Smart TV's, Games Consoles & USB Phone Chargers. USB charging cable included. Length: 24 inch, width: 1 inch, adjust to fit neck sizes from 16-inch to 23-inch, ideal for large or extra large dogs, please remember to allow for two fingers to fit between the collar and the neck