It is a superlight semi-floating disc rotor with a steel braking surface, a carbon fiber inner body, an Al7075 Center Lock specific Adapter, a laser-engraved titanium protection plate, and fixing rivets.
If you have Centerlock Hubs, you can use a 6-Bolt to Centerlock adapter (DT Swiss makes a great one). Carbon Ti Disc Rotors - 140mm - 6-Bolt - Pair (Centerlock Compatible with Adapter). Individual unique Serial numbers printed on each disc.