Please Measure the circumfrence of the widest part of your dog's skull before purchasing. Waterproof, stain resistant, odor resistant, and long lasting. Pet necklaces don't pull on your dogs fur, don't smell or stain like traditional cloth collars, look super cute, and are comfortable for your dog. Enjoy this simple, clean, and minimalistic look! This necklace is not suitable for clipping a leash to and walking your dog.