Square-shaped ISOMETRIC racquet generates a larger sweet spot by optimizing the intersection of the main and cross strings; Aero + Box Frame combines solid hitting feel and quick swing; Rotational Generator System for counterbalanced weight distribution; Flex Fuse placed in the joint at the bottom of the frame to absorb shock and offer a softer feel on impact; Namd situated in the shaft results in a large increase in shaft flex and snap back speed, producing explosive smashes