SainSmart Jr. CB-21 Amaze Cube Maze (Yellow) Search ASIN B015ZJ3S0E for the upgrated version money maze bank. Material: Environment friendly ABS plastic. For Ages: 5 years + Flip twist & spin your way to the finish line! It's ideal as unique birthday gifts for the adults and kids in your lives who love brain teasers The toy improve children's space imaginative ability, balance ability, memory & patience.