The Ashaway Viper XT1200 features a hexagonal head shape & comes strung with the Zy Max 70 string to deliver exceptional strength, durability & responsiveness. The Hex frame technology ensures extra strength in an ultra-slim construction, while the Viper Weave technology guarantees low torque & no lateral movement even on miss hits. The racket weighs 89g (3.1oz) & is head heavy balanced for more power, stability & spin. In addition, the Carbon Nano Tube construction provides great strength with less weight than standard carbon formations.