Herm Sprenger Prong Collar - Black Stainless Steel with Click-Lock - 2.25mm x 16 Inch - Dog Training Collar for Stubborn Dogs - German Quality

【Durable Construction】: Crafted from black stainless steel; galvanized and coated with a special polymer for exceptional resistance to abrasion and long-lasting performance; designed for reliable use during training sessions with dogs up to 66 lbs. 【Secure Click-Lock】: Features a click-lock buckle for secure and easy fastening; prevents accidental unfastening during walks or training; provides peace of mind knowing the collar will stay securely in place. 【Optimal Fit & Adjustment】: 16-inch (41cm) collar length suits necks approximately 14 inches (36cm); adjustable by adding or removing prongs to ensure a comfortable and effective fit; allows for two fingers between collar and neck. 【Safe & Effective Design】: Equipped with well-polished blunt prongs designed to safely affect the dog's neck; promotes effective communication and control during training; ideal for stubborn or strong-willed dogs. 【Complete Set】: Includes one O-ring for leash attachment, a balancing center plate, and a nylon loop; compatible with additional links and a nylon cover (sold separately) for customized comfort and fit; designed for professional or at-home training.