Boss Dog® Brand elevates everyday dog attire with strength and durability, meeting dogs’ desires for comfort and style. Our humane martingale collars feature adjustable lengths and even pressure distribution to enhance leash control and prevent pulling. If you’re using a martingale collar choose Boss Dog®. Treat your pet, like a BOSS. Boss Dog difference. Zinc alloy clip. Stainless steel D-ring. 2 trigger safety clip. Anti-rust clip. Durable military nylon webbing. Neoprene lining. Convenient handle.