These spokes are for 2019+ Mavic Ksyrium Pro Carbon UST Disc wheels.  These spokes are black stainless steel and include washer and nipple. 

2019+ Ksyrium Pro Carbon UST Disc

Front and Non-drive Side:  V3665601/V4160401

Drive Side:  V3665801/V4160601

If you are unsure which spokes you need to order or are unsure how to determine the model and/or year of your wheel,  here's a short video about what I use to ID a Mavic wheel.