The Ragnar Dog Collar is the perfect choice for the active dog. Its long-lasting, rugged design ensures maximum comfort and functionality, while the premium padding provides the best combination of both style and comfort. It has an adjustable size that spans between 3 and 10 inches depending on the size. You can use this collar for brand new puppies, all the way up to full sized powerful breeds. Fenrir products are all tested by expert dog trainers to give you peace of mind when using them with your canine companion. The Fenrir Ragnar collar comes in black, red, green and orange and is colour matched with the Fenrir harnesses and leashes to make sure your dog has perfect comfort and style.