Awesome power in a fast swinging lite weight racquet frame. 22' LongString Technology. Titanium Construction. Only E Force utilizes the entire racquet frame to create maximum string length and maximum stringbed deflection for maximum power. The improved 22.0' long String technology features center mains which are now 34' longer. They extend from the outside of the top of the frame unrestricted through new 2.54 sq. cm. Monster String Holes and run through the entire length of the handle. The ten center mains are now at least 6.5' longer than in competitor racquets. They add at least 57 extra inches of combined length an increase of at least 39% for crushing power. Features 22' LongString Technology Total Carbon Head Tri Carbon Frame Titanium Construction The evolution of racquet frames...from teardrop to quadraform to midsize and oversize...resulted in longer mainstrings and longer cross strings. This created tremendous increases in power. Why It's the same principle as