A symbol of true ownership. Our RI400 steel collars are custom made from strong, heavy steel. Your slave will not forget they are wearing one.Each collar has 4 steel D-Rings for attachment.Picture shows our 2 inch tall model in the flat black finish. We are confident you will appreciate these hand made collars. Size 19 in Circumference (5 in Diameter). Also may be available in Black & Clear finish, with 5 inch and 6 inch diameter options.