COSMO DARTS has succeeded in creating the lightweight shafts with high stiffness and strength that is comprised of reinforced plastic resin and high-strength carbon fibers. These shafts combine both the performance of lightweight plastic and the high durability of metal.
It's now easier to tell between locked and spinning... Spinning shafts have a rounded top and Locked shafts have a flat top. Also, the top of the locked shaft is now in a matte finish
If you install flights onto a Locked style shaft and then onto a Spin style shaft, you may notice the flight is looser than normal and may pop off easier. Avoid this by using separate flights for Locked and Spin shafts.
Only work with Fit Flights