Introducing our innovative Herm Sprenger Improved Design Dog Training Collar, engineered for precise correction and pull limitation to enhance your training experience. This unique collar features prongs of the same size as our 2.25mm wire gauge but with the enhanced strength of a 3mm gauge, ensuring effective training with increased durability. Crafted from high-quality stainless steel, this collar offers exceptional durability and rust resistance for long-lasting strength. Its adjustable fit accommodates dogs with neck sizes up to 18 inches, with the option to add additional middle links for larger neck sizes. Please note that due to the new unique design, standard middle links are not compatible, and specific links designed for this model must be used for adjustments. Trusted by professionals worldwide, this collar is engineered to distribute pressure evenly, providing safe behavioral correction without the risk of choking. Its humane effectiveness in training has earned the trust of dog trainers and veterinarians alike. Proudly crafted in Germany by Herm Sprenger, you can trust in the highest quality and durability with every collar manufactured. Experience the precision of German craftsmanship and elevate your training sessions with confidence and reliability.