Fit Shaft Carbon - Normal Spinning #4 In-Between Long (28.5Mm)New Normal Spinning Carbon Fit Shafts from Cosmo Darts. This is the Carbon Fiber version of the normal spinning Fit Shaft. Each set of Carbon Fit Shafts includes 4 shafts so that you can replace one that breaks without having to buy a whole new set. Fit Flight is an innovative flight and..