A traditional die is a rounded cube, with each of its six faces showing a different number of dots
A dice tray or a dicebox is a piece of gaming equipment, a tray used to contain thrown dice, for gambling or board games. One traditional form used in Flemish dice games is an octagonal shaped wooden tray, lined with fabric. A dice tray can be used to play games on its own or as an add-on for other board games, in particular to allow dice throws which do not interfere with other game pieces.
Dice were originally made from the talus of hoofed animals, colloquially known as "knucklebones". These are approximately tetrahedral, leading to the nickname "bones" for dice. Modern Mongolians still use such bones as shagai for games and fortunetelling. Besides bone, materials like ivory, wood and plastics such as cellulose acetate have been used. Dice are hard to distinguish from knucklebones in literature because ancient writers confused the two, but both were used in prehistoric times.