Fact about Tungsten Ring. Tungsten Rings will remain permanently polished. Model NT214: 7 CZ/ Beveled Edges. Model NT250: 13 CZ/ Pipe-Cut. Hypoallergenic and Cobalt free. Available size: 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13, 13.5, 14, 14.5.
