The choice of a new generation of powerful players, offering up the pace and precision needed to penetrate the court from any position with BLX enhanced feel. Wilson's new BLX technology features Basalt, a natural volcanic rock. It can be used in manufacturing where it is made into fine gold fibers with incredible vibration resistance. Wilson's new technology, BLX, has used these basalt fibers and woven them longitudinally with [K]arophite Black to create one of the most advanced composites in the industry.With basalt, a smoother signal reaches the hand. BLX technology delivers clean feedback.