It would be fair to say that the material resembles carbon fiber. You can actually see the weave of the material if you look closely. The points spin in the barrels, allowing the flight to move out of the path of incoming darts. These are sold as 'no bounce' darts, and they do just that, virtual no bounce. This action allows the dart to continue travelling into the scoring area, rather than to the floor.
Points can actually split on the wires, resulting in the point resting in two scoring areas.
The rule is that the higher scoring area counts. Replacement points, you WILL NEED them. These darts rarely, if ever bounce out. In fact, they grip the board very well, sometimes too well. Available in multiple styles and weights.