Fisher cube shape mod speedcube from YJ.
A great example of the classic Fisher cube 3x3 shape mod from Qiyi!
Mad as a box of frogs. Keep repeating to yourself; it's just a 3x3!
The Fisher Cube is one of the best known 3x3 shape modifications in existence. Invented and named after by famous puzzle inventor and king of the mad mods, Tony Fisher. It was invented sometime during the 80s, inspired by the original Rubik's Cube.