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 and the natural finish with clear protective coating applied. We are confident you will appreciate these hand made collars. Size 15 3/4 in Circumference (5 in Diameter). Also may be available in Black & Clear finish, with 5 inch and 6 inch diameter options.