What hotend(s) come with the X1-Carbon Combo?

So I just got the X1-Carbon Combo, and noted that it came with an extra hotend, which I am delighted with! Unfortunately I have no idea what kind of hotend this is, stainless steel or hardened steel. Both types look and are marked exactly the same on the website, how can I tell what these are???

Don’t the stainless steel hotends come with a gray/silver heatsink, while the hardened steel heatsinks are black?


The x1 carbon combo comes with an 0.4 hardened steel hotend, the spare one is an 0.4 hardened hotend too

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