Nautilus Cube _ Meffert's Color Matching Twisty Puzzle Very clever "Rubiks Cube-Like" twist and turn puzzle. Three rotating levels. Each can turn independently of the other two. After scrambling up the puzzle attempt to return to 7 rainbow colors in bands. Left and right sides of the puzzle can also rotate. Rated as level 8 difficulty. Your experience could differ. Smooth sliding pieces. Recommended for ages 10 to 105 years