Ready to take Mental Blox to the next level? This brain-boosting, make-you-think, point-of-view game challenges players to build 3-D puzzles from different visual perspectives. Forty double-sided cards feature the puzzle on the front and the solution on the back. With three levels of play, this puzzle game is a sure way to sharpen spatial visualization, critical thinking, and problem solving skills. Includes 15 colorful blocks and Activity Guide. Largest piece measures 3" H x 4½" L. For 1 or more players.