— The stainless steel castings that were used for the Super-Bowl rings were tested by the National Institute of Standards and Technology, which said Friday that it had verified the rings’ quality.
The Super Bowl rings that were tested included ones from a company called U.S. Steel, a supplier to Nike, and another from a brand called Steel-Eagle.
The tests found that the rings had a stainless steel coating that was about two-thirds the thickness of a standard ring.
Nike said it had purchased the rings from Steel-Ear Eagle in April 2016 for use in its Super Bowl XLVII ring.
The rings were made by the United Steelworkers union, which sued Nike in March, saying the rings were unsafe.
“Nike has agreed to remove the rings, suspend their production and pay a fine of $6.7 million to the United States Steel workers,” the union said in a statement.
As for Nike’s reaction, the company issued a statement saying it “is fully committed to working with the NFL, the union and its allies to bring the safety and integrity of the game to the next level.”
The U.K. sportswear giant said it was working with both the NFL and U.N.F.I. to bring down the rings.