This double pack of squash rackets is composed of two wilson whip 145 blx rackets they provide solid stability and power thanks to the head which measures 772in2 498cm2 and the head heavy balance power hinge technology maximises the movement of the strings in the string bed and the size of the sweet spot so you can play with more power and confidence blx helps reduce vibrations and shocks so feel is smoother and cleaner the open 14x18 string pattern encourages spin and the racquets are bo