The Wilson Tour 138 BLX pack comprises of two squash rackets designed with those players in mind who look for increased control & a classic feel. Each racket has a 72.4in 2 (467cm 2) head equipped with an open 14x 18 string pattern that helps generate enhanced power & spin. The rackets incorporate the BLX technology that involves basalt, a natural volcanic rock, to provide great vibration resistance & clean feedback. They weigh 138g (4.9oz) each & are supplied strung with the Sensation Strike for added bite, touch & control. Two ¾ racket covers are also included in the pack.