Pawow LED Reflective Dog Collar, Keep Your Dog Visible & Safe, Nylon Light-Up Night Safety Collar 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 extra tough nylon, water resistant and great for all conditions, light weight, durable, fully adjustable quick-release buckle lets you find the perfect fit for your dog's neck. Strong D-ring allows for easy attachment to leash or identification tags Fully adjustable quick-release buckle 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 Adjustable Length: 13.4 - 19.7", width: 1", adjust to fit neck sizes as long as to 19.7", ideal for medium or large dogs, please remember to allow for two fingers to fit between the collar and the neck