Lupine collars are the best dog and cat collars available on the market. The makers of this brand back up their product 100%. They are amazing–both the company and the product. If your dog or cat chews up or destroys the dog collars and leashes in any way, all you have to do is bring the remaining portion of the collar (or leash) back to the location you purchased it from, or send it back to the company itself, and they will exchange it for free. Forever. Also, the collars come in a large variety of cute designs. These collars and leashes are very durable, too. My dog has had the same Lupine collar for 6 years, and it looks as great as when I first purchased it.