eBoot 100 Pack Metal D Ring, 1/2 Inch D-rings fit for making belts, harnesses and dog collars, luggage straps, and backpacks, etc. 1/ 2 Inch non-welded D-rings Inside width: 1/ 2 inch (13 mm), Inside height: 5/ 16 inch (8 mm); Thickness: 8/ 100 inch (2 mm) Package included: 100 D-rings