*Osi Umenyiora looks back at the Giants' Super Bowl titles and the meaning behind his rings: *

Over the past half-century, the Super Bowl ring became one of the most sought-after treasures in all of sports. Fifty teams to date have been fortunate enough to place orders for them, four of which were delivered to the New York Football Giants.

As part of its "50 rings in 50 days" series leading up to Super Bowl LI in Houston, NFL Network sat down with former Giants defensive end and two-time champion Osi Umenyiora to talk about his jewelry.

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"I was in the league 12 years and actually only went to the playoffs five years and then won the Super Bowl two of those years," Umenyiora said. "Every time you get an opportunity to chase your dream and actually get into the big game, you have to take full advantage of that. And if you're able to get a ring, there's nothing like winning a championship."

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Umenyiora, who was inducted into the Giants Ring of Honor in 2015, earned his rings in Super Bowls XLII and XLVI. Both came after victories over the New England Patriots, whom the Giants held to 31 points combined in those games. Umenyiora was part of a defensive front that sacked four-time Super Bowl champion seven times, five of which came in the first meeting.

"The Super Bowl [XLII] ring just signifies a whole bunch of persistence, man, and overcoming something nobody thought we could do" said Umenyiora, who ranks fourth in franchise history with 75 sacks. "The fact that we went out there and defeated an undefeated team and brought them back down to earth, whenever I think about that [ring], that's what I think of."

Added Umenyiora: "It's a ridiculous ring, to be honest with you. I think Michael Strahan called it a '10 table' ring, which is a ring you can see from 10 tables away. You have the three championships that the Giants had won at the time. Whenever I think about it, I just get chills down my spine because it was such a special season."

Four years later, the Giants added a fourth.