Proper spacing between the barrel and your flights is the key to attaining the optimal trajectory and perfecting your game. The key component in this critical aspect of darts is the shaft. We are pleased to present the latest in shaft designs with the Al XIII Dart Shafts by Viper. These shafts are an all-new design with aerodynamic style in mind. For a sleek look in top of the line equipment, Viper Al XIII shafts are the only solution. Al XIII Shafts feature locking holes to provide a secure grip between barrel.