If the casino want they can change the dice. But usually this happens whenever craps players start winning a lot of money. Superstition is common for casino supervisors too.
The exchange is never noticed by the players and the shooter.
There are other reasons the house changes the dice:
They find the dice too old and the edges too worn down. They change the dice when nobody plays at the table.
The dice can be changed with every new shift or a crew of dealers. The player himself can ask the casino to change the dice. They will hardly refuse, especially if the player is a high roller. Of course the casino is under no obligation to change the dice just because a player asks. One or more are lost when a shooter bounces them off of the table. But in reality it happens very seldom.
Note: All dice sets are numbered and usually have the logo of the casino and the city and state location of the casino imprinted. Dice are cancelled after use with a device that imprints a small circle in the centre on the number 4 edge.

$150 free deposit bonus!

if you want to become one of more winners, more often, the gaming club online casino and poker room are the places to play. the gaming club, established in 1995, has over 100 cutting-edge casino games and five poker games from which to choose. winning big, at the first online casino on the internet, has never been this easy or this much fun.