Hamilton Gunmetal Series Single Thick Nylon Dog Collar Shoe Grade Eyelets enhance the look and eliminate fraying All cuts are finished away from the skin to avoid irritation D-Ring extra keeper allows for easy tie out Available in 14, 16 and 18 inch sizes When measuring pet's neck or chest to ensure proper and comfortable fit, add 2 inches. When measuring pet's neck or chest to ensure proper and comfortable fit, add 2 inches.