The product description 1. Suitable for most dog breeds. Please use a soft measuring tape to measure your dog’s neck circumference. Please allow about 2 fingers to breathe between the dog’s neck and the dog’s neck 2. Safe and Convenient: Quick buckle release, easy to put on or take off the dog collar. You don’t have to adjust your dog’s collar every time. Features a safety lock to ensure 100% no accidental dropping o 3. Durability: Made of durable high-density nylon, sturdy plastic buckle and stainless steel D-ring 4. Easy to clean: machine washable, suitable for daily use. All metal fittings are rustproof