Precision Dice

Precision dice are dice that are very carefully cut, so that their size is far more exact than regular dice. Also, the pips (dots) are flat, as opposed to scooped out, as in normal dice. This means that no side is lighter or heavier than another. They also have rounded edges and corners so that they roll better, and players can see through them, which precludes the question of loading or weighting.

Since there is no 'proper' size as such, depending on which supplier you use there are a variety of other sizes and colors to suit the boards and dice cups, as well as the eyesight of individual players. For example, some players prefer the larger 3/4" opaque dice because they can see the numbers far better than on the small clear ones.

Players should also note that precision dice for board-gaming typically have rounded corners, where those designed for casino gaming have square corners. Rounded corners roll better on small playing surfaces and square edged/cornered dice are unlikely to give a backgammon player random rolls. You do not want to use precision casino dice for a backgammon game.

The reason square cornered dice work for craps and not for backgammon has to do with scale. Look at the size of a crap table compared to the size of the craps dice. The casinos require the player to throw the dice to the far end of the table and they must bounce at least one time off the wall. The table surface is composed of extremely densely woven wool felt, and the average craps table wall is some form of high density foam rubber.

Backgammon dice are randomized in two ways: while shaken in a dice cup, and to a lesser extent, when tossed onto the playing surface. Precision dice are unlikely to bounce well in a dice cup unless they are quite small in relation to the inside of the cup. Casino craps dice would require dice cups the size of pony beer kegs.

When the dice hit the surface they hopefully spin, roll and bounce around. This is unlikely with casino dice. They will either skid and slide to a halt without turning over, or they will bounce out of the playing surface. And to top it off, the sharp corners are apt to chew up the playing surface after awhile.