From the box "The fine dice game in the blue box". Contains 5 x 20 sided blue dice, dice bag, dice shaker, two score pads, 2 pencils, rules. The idea is like a super Yahtzee, but not only do you make sequences but you can also make equations using addition or subtraction (for a couple of points), multiplication or division (for more points) or power/exponent or root equations (for even more points).