Diameter of the tin is the size of a quarter. It was laid on the table among other change, and allowed one to read cards as they were dealt. Opposite side of the shiner shown also. These are two way juice dice, with combinations of 1,2 and 5,6. When magnetic force is applied, the numbers one or two will come up on each die, for rolls of 2,3, or 4.
Dice look and roll normal.
The dice will come 1,2 and 5,6 like the backgammon dice. As if you could tell, the fronts are the pair on the right. The magnetic field measures a little more than 12 x 24 inches and is at one end of the table. The electronics are inside what appears to be an ordinary wood veneer picnic or banquet table, measuring approximately 48 x 34 inches x 2 inches thick. In practice, a craps or other layout would be put over the table with players shooting the dice towards the end of the table with the mag field.