Campagnolo Chorus crankset, ultra-torque, 10/11 speed compatible.
The chainrings were used for more than 30,000 km. However, I never rode them in wet conditions. I always treated the chain with a good wax and changed them regularly.
There are several scratches on the carbon surface, as you can see in the photos. The ball bearings are not perfectly smooth, but you will only notice this if you pay close attention on smooth tarmac. The chainring bolts have been replaced. The pedal threads are in very good condition. I am including a few spare parts.
Overall, the crankset is working well and is fully functional.