This spinning carbon shaft is built strong to prolong the life of your flight. This carbon shaft was created with keeping your focus on the game in mind. The top part of the shaft is carbon to keep all the benefits such as holding the flight on tightly and the built-in flight protectors. The bottom part of the shaft is plastic this is to allow the shaft and your flight to spin to greatly reduce deflection and reduce the annoying rattle that most spinning dart shafts have. Adding this line of shafts to your dart will take your mind off what dart product you are using and let you focus more on your dart game!