These cards can't be used to play Backgammon. The cards are numbered 2-12. But in Backgammon, you need each die individually - a 2-6 roll is very different than a 4-4 roll. I was expecting the fifteen combinations of two six-sided dice. And a "1" card isn't included to do a proper 1-6 set either.
[2 of 5 Stars!]