The Original Sporn Halter® was invented by Joseph Sporn in 1992. Using only the highest quality materials, this halter is guaranteed to stop your dog from pulling. The Sporn Halter® is made of the highest quality braided cord and nylon webbing with thermoplastic and nickel-plated steel fasteners. The Restraints™ are threaded through the fabric Sherpa Sleeves™ for your dog's maximum comfort.