Dr. M is a completely custom Pyraminx made by Steven Wintringham. Incorrect color schemes from the factory are fixed, defective parts are replaced, and magnets, caps, and edges are glued in place for longevity. Dr. M is also thoroughly lubricated, tensioned, and tested to ensure maximum performance. The result is a fast, extremely stable puzzle that has been used to win major competitions and set multiple records. He didn’t go through seven years of medical school for nothing.