NYLON AND METAL MATERIAL - Dog training collar made of quality nylon and metal material, it is durable and tear resistant. CONVENIENT USE - Featuring a steel metal grip, which gives you better control near your dog. dog. With a steel ring, this classic collar adapts to all leashes, ideal for training, walking etc. ADJUSTABLE AND SOLID - This semi-choker collar is adjustable, with the light and solid buckle, it is easily to put on and take off."