Wilson Sword BLX Racquetball Racquet All-around squash racquet Basalt: A natural volcanic rock, made into fine gold fibers with incredible vibration resistance; woven longitudinally with [K]arophite Black to create an advanced composite; delivers clean feedback and better sensation Linear Geometry: Reduces overall beam width while providing better stability Control Base: Innovative hoop engineering for maximum torsional stability and precise control Power Strings: Design maintains consistent string placement for lethal power on all shots