Q-Workshop Moomin Dice Set - Rules of Play says:
These dice are the real sign of love for Moomins, our dear, well-loved friends from Moominvalley. This set is our tribute to the magical world, the limitless imagination of Tove Jansson. Nostalgia friendship, family, and all that is important in real life. We’ve learned this and more from Moomintrolls. Roll, dream, and don’t fear the Groke!