The Wilson PY 138 BLX squash racket pack comprises of two frames weighing 138g (4.5oz) each & strung with the Hollow Core string that ensures excellent power, comfort & control. These hybrid frames are equipped with the BLX technology for great vibration resistance & clean feedback. They are head heavy balanced to deliver more stability & power & have a 76.7in 2 (495cm 2) head with an open 12 x 18 string pattern that helps generate more spin. in addition, Wilsons exclusive Power Yoke technology provides the rackets with a bigger sweet spot for more power & accuracy on off-centre hits. Two full racket covers are included in the pack.