Keva Brain Builders Junior 4+ by Mindware 

Build Using Perspectives Train young brains to think in multiple dimensions, transferring 2D information into 3D reality! Players use KEVA planks to successfully duplicate the balance, proportion, composition and geometry featured on each card. Brain Builders Junior features a photo of a fun, recognizable object to replicate. Includes 20 KEVA planks, 30 double-sided cards and instructions in a zippered carrying case. Recommended Ages: Ages 4 and up