Outer diameter of this extra heavy duty open jump ring is 7.5mm. Made from Solid Copper material with a flush cut opening. The finish color is an Antique Copper, as shown. 16 gauge is about 1.3 mm (0.05 inch) thick. Package size: 20 pieces.
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Solid copper open jump rings are made from 18ga material, 8mm diameter. Flush opening.
This heavier curb style chain is very bright because each link is filed on both sides.
Outer diameter of Sterling Silver open jump ring is 8mm. 18 gauge.
We also carry Copper Plated Base Metal rings.