The Dog’s Life Martingale style collars for dogs are handmade with great attention to detain. Reflection is added for extra pet safety. Perfect for dog training as well as daily use. Reflective martingale dog collar is made of high quality thick yet soft nylon webbing with reflective thread. Equipped with lockable plastic side release buckle so that you do not need to adjust the size every time you slip on your dog, and stainless steel chain and O-rings that is long lasting and strong.