The Ashaway Viper XT 900 weighs 85g (3oz) & has a square head shape providing consistent stiffness within the racket. It offers an 88 hole stringing pattern delivering more stability to the string bed & is head heavy balanced for more power & spin. The racket is strung with the Zy Max 70 string ensuring excellent durability & responsiveness & incorporates the Viper Weave technology integrating a Meta-Composite into a Viper Skin Weave with Ultra-High Modulus Graphite & Nano Carbon.