Fit Flight Titanium Slim Spinning Dart Shafts - X Long #8Fit Flight Titanium spinning dart shafts are corrosion resistant. They are manufactured to the highest standards and have all the advantages of the Fit Shaft and Fit Shaft CARBON but are more durable. It's easy to tell the difference between locked and spinning Fit Flight shafts because the spin shafts have a rounded top and the locked shafts are flat on top. Fit Flight shafts are measured by shaft only length which is the distance between the flight