Backgammon Checkers-Blue 1 1/4" Go to amazon.com Related posts Expert choice for backgammon pieces marble FeatureBackgammon CheckersMade of Uria Stone, this is the same component bowling balls are made of15 Blue and 15 Ivory DescriptionBackgammon Checkers Made of Uria Stone, this is the same component bowling balls are made of. 15 Blue and 15 Ivory Size: 1 1/4" Diameter