Gear Pyraminx Twisty Puzzle Rotational, twist and turn style manipulative puzzle in shape of a pyramid. 4 sided (4 faces), 4 colors. Easy to mix-up. A real brain-buster to return same color to each of the 4 faces. Fascinating gear style mechanism. Rated as a Level 5 "Moderate" on a scale of 5 to 10. Your experience may differ