Blueberry Pet Essentials Personalized Martingale Safety Training Dog Collar, Marina Blue, Medium, Adjustable Customized ID Collars for Dogs

Beyond the regular collar, leash, seat belt and harness! Blueberry Pet offers martingale dog collars to keep your four-legged friends safe. They are the best collar for dogs that slip out of regular buckle collars, and will keep your dog safer on leash. It is also a great training collar preferred by most dog trainers.