The Signature K9 adjustable nylon ID collar is a heavy duty American-made collar made for dogs. The collar itself is made from 1.75-inch Sort 13 nylon with a metal ring and buckle. Not only if it survive a long time, but the thickness of the collar may also ensure your dog has a broad layer of protection around their neck and trachea. On the rear of the collar is a wide Velcro section where patches and ID panels can be attached. While the collar lacks size alternatives, it is very adjustable for medium to large dogs. If you're searching for a simple yet tactical dog collar your large dog can comfortably use while playing or working outdoors, the Signature K9 is a fantastic choice based on its own sturdy construction.