The prokennex torpedo blue tennis racket has a good sized 100in2 645cm2 head which gives it a larger sweet spot for more forgiveness on off centre hits and a better power potential the racquet has an even balance which means it offers good feel and the 310g 11oz frame is a comfortable weight the torpedo blue is made for recreational use and is aimed at beginners built from a combination of graphite and alloy materials the racket is strong and comes pre strung with a crystal plus string i