The Flex puzzler is becoming transparent! The Crystal version offers 80 puzzles in 2D and 3D with a new, transparently shimmering design. The puzzler can be bent at 45° and 90° angles for even more variety in the challenges. Which bending combination is the right one? Includes additional tasks that can be solved in combination with the Flex puzzler, the Flex puzzler XL, and the Flex puzzler MAX.