Specifically crafted in Germany for unbeatable durability, this HS Sprenger stainless steel training collar provides effective yet humane leash corrections. The 31 prongs quickly reinforce commands without harm, while the 3.2mm links won't bend or break under pressure. The polished finish resists rust and scratches. And with an easy-grip 21 inch length and secure chrome buckle closure, it gives you full control during walks. This collar is German engineering and quality manufacturing at its finest. Brand new in packaging, this invaluable training tool will keep your powerful or high-drive dog focused for years.