a tail we could wag is a manufacturer, considered the originator of the so-called Maya collar, which uses beautiful woven tape from the Mayan people of Guatemala. Known for its rough texture and sturdy construction, it's a long-selling product even for bad tails. Martingale collars are a popular style because they provide soft choking, making training easier, and are easy to put on and take off. a tail we could wag's solid brass rings (genuine brass) are made to last and maintain their beauty without rusting. I used the color chalk, which has a wonderful faded look, on a Golden Retriever puppy.