5x5 Rubik's Cube

An expanded version of the mind-boggling classic, Rubik’s 5x5 is the most challenging Rubik’s Cube ever made. Rubik’s 5x5, also known as Rubik’s Professor, has more than 10 billion combinations, more combinations than any other puzzle in the world. Featuring the iconic Rubik’s Cube design and color concept, Rubik’s 5x5 is a real handful. It comes with a black plastic cube stand.
— “Rubik’s Cube,” Denis Hofsetter told TDmonthly, when asked which item was his 2007 best-seller. “We sold out.” Dennis is the owner of The Toy Store in Atlanta, Ga.
— Manny Rocha, general manager of Mr. G’s Toys & Expressions in Los Angeles, Calif., said that his store “sold four gross” of Winnning Moves’ Rubik’s Cube.
— Five percent of 62 retailers who spoke with TDmonthly singled out this item as their store’s 2007 best-seller.