I was able to find a picture of Terrance Williams wearing these cleats on Opening Day in a game against the 49ers in 2014. The item "Terrance Williams Game Used Dallas Cowboys Cleats Matched to 49ers" is in sale since Wednesday, September 5, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Football-NFL\Other NFL Game Used Mem".
The seller is "dsc0109" and is located in Carrollton, Texas. This item can be shipped to United States.