At Mighty Paw, we believe that training your dog can be a positive bonding experience. That's why we created the Mighty Paw Martingale-Style Limited Cinch Collar. The Mighty Paw Brand was created by dog lovers for dog lovers. We are a family owned and operated business out of Rochester, NY. MARTINGALE-STYLE LIMITED CINCH COLLAR: The limited cinch collar was designed to make training with your dog safe and effective. The traditional choke collar is aggressive and uses uncontrolled force to correct negative behaviors. The Mighty Paw martingale-style collar tightens under tension but only tightens enough to provide a (subtle) controlled training cue to your dog. Endorsed by thousands of trainers, this collar is preferred because of its gentle nature and extreme effectiveness. DURABLE CONSTRUCTION: The Mighty Paw Limited Cinch Collar is constructed with premium quality nylon and reflective stitching that will keep you and your furry friend visible even when the sun goes down. The 100% iron chain provides the perfect balance of durability, functionality, and aesthetic appeal. As compared to nylon based martingale collars the chain in the martingale-style collar creates an audible sound under tension. This sound further enhances the training connection. 100% IRON CHAIN: The Mighty Paw Limited Cinch Collar is constructed with premium quality nylon, reflective stitching, and a 100% iron chain. This is the ultimate balance between durability, functionality, and aesthetic appeal. Enhance your training with our chain-based martingale collar. The iron components of our collar create an audible sound that further reinforces your training. SECURE LEASH ATTACHMENT: As a BONUS, our martingale-style cinch collar also features a single-piece D-ring attachment option. This makes it quick and easy for you to change from a training collar to standard (non-cinch) collar.