This durable deluxe grooming loops are made of tough, thick, flat, woven nylon and feature a metal slide for extra strength and long life. They easily adjust to fit any dog. For added safety, the metal adjustment ring helps prevent the dog from backing out of the loop. The heavy-duty 2-inch swivel bolt snap opens 1/4-inch and keeps the loop securely attached to the grooming arm. This economical 4-pack contains one of each colors, black, blue, purple and pink. Measures 18-inch.