The product description 1. Neck 14.5"-20", overall tape width 1", rubber layer tape width 3/4", waist average; The dog collar does not stretch, please make sure there are only 2 fingers between the collar and the dog’s neck. A well-fitting collar and harness won’t leave room for your dog to chew on. 2. This necklace is not for the tie. Don’t leave your dog without a collar. This collar is a rarity. 3.M Reflective light is only sewn on part of the polyester tape. All the tape is not embedded with reflective light. The belt buckle is made of eco-friendly plastic to match the color of the ribbon. Chrome plated metal D-ring for added durability. 4. The circle attached to the logo is specially designed for a dog’s talisman, medal, pendant or accessory. Please do not use this ring on the leash.