Rainbow Spotted 6-Sided (D6) 25mm Dice _ Bundle of 10 Bundle of 10 (ten) identical 6-sided white Dice. D6 = six sided dice. Smooth solid 25 mm white dice measure 25 millimeters (just shy of 1 inch). Bright rainbow colored recessed dots. Red, green, blue, yellow, orange and dark purple dots. Big bold dice are fun to play with. Use in your own creative manner. NOT a stand alone game.