The aim of this popular brainteaser is simple, but achieving it is not! Jumble up the numbers, then try to slide them back into order again. This classic Scramble and Solve puzzle comes with over 30 challenges! The stainless steel tiles with decorative enamel facings slide smoothly in the frame, and a handy travel case keeps the puzzle and challenge book together. Single player, FOR AGES 8 TO ADULT.