Durable Top Performance® Deluxe GroomingLoops are made of tough thick flat woven nylon andfeature a metal slide for extra strength and long life. Easily adjust to fit any dog Metal adjustment ring helps prevent the dog from backing out of the loop Heavy-duty 2" swivel bolt snap opens -¼" and keeps the loop securely attached to the grooming armThis economical 4-pack contains one of each color: Black Blue Purple and Pink. This product meets or exceeds Professional Pet Groomers andStylists Alliance (PPGSA) standards. Material: Nylon Metal Size: Available in 18" and 24" styles