The Mayerzon Dog Prong Training Collar is designed to correct with even pressure all the way around the dogs neck to protect the trachea and other sensitive areas. Made of high-quality stainless steel and rubber, this collar is durable and effective in training your dog. With a buckle closure, this collar is easy to put on and take off. The detachable prongs are easy to store and replace, and the blue color is perfect for identification.