This is the Harrow Fury squash racket, which I first spotted in this tweet by Australian pro Lisa Camilleri:
— Lisa Camilleri (@CamilleriLisa) February 23, 2013
Like Lisa says, this racket bears the signature of Natalie Grainger, former world #1.
This racket is 145 grams so a medium weight. The Harrow Website says the balance point is 380mm, which should feel slightly head-heavy. Oddly they state the racket has an even balance. Maybe when you feel the Fury, it just makes the racket feel a bit lighter than it would otherwise normally.