Hamilton Brushed Hardware Single Thick Nylon Deluxe Dog Collar Shoe grade construction eyelets enhance look and eliminate fraying Matching color insert in buckle lets you know it's a quality Hamilton product All cuts are finished away from dog's neck to avoid irritation D ring and extra keeper offer better fit and allow for easy tie out with one ring dedicated to tie out or walking and the other to id info 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.