Digits in a Box by PlaSmart - Stacking Game, Brainteaser Puzzle, Play to Enhance Concentration and Problem Solving Skills, Ages 8 and Up Everybody has fun with award-winning Digits in a Box, a simple but challenging puzzle from Popular Playthings Spill the digits from the box and scramble them -- then fit them back into the box so that the lid closes flat With just 10 pieces shaped like the digits 0 - 9, there are over 4,000 possible solutions to this puzzle For ages 8 and up Popular Playthings provides award-winning toys that encourage learning, creativity, social interaction, and good old basic fun