Standard Silver Double 6. These dominoes have a clear anodize on them, making the aluminum slightly gray. After we punch the dots out the dots become highly visible.

This set is very popular because you won't be able to see the rack points at the end of the dominoes. Even thought the dots are silver like the tile they still pop and are very noticable.

Tiles measure 1 x 2 x 3/8ths.  Custom boxes are available as an option. They will ship in a black plastic box otherwise.