Herm Sprenger Black Stainless Steel Fur Saver Collar - 51541 (57) 1/9 inch (3 mm) - Size 21 inch (55 cm) for Dogs with Neck Size of 18-19 inch (45-48 cm) Keeps your dog's fur in perfect condition High quality Fur saving links Suitable both for long and short-haired breeds Doesn't cause allergy or other problems with health