ULTIMATE RD SHELL BY TAKAMIZ USUI & HENRY HARRIUSTHE WORLD'S FIRST FOLDABLE, SIX SIDED SHELL. Welcome to the NEW ERA of Cube Magic.! Takamiz Usui & Henry Harrius This is the cleanest cube solve you have ever seen, and others can never feel the presence of a shell. Your spectator FREELY mixes up a Cube, then places it into a simple, FLAT paper bag. They can even look inside to confirm the bag contains nothing but their mixed up cube. Under the most impossible condition, the cube SOLVES ITSELF.