Oops, thanks for pointing that out! I'm super blind!
Though I'm wondering if that cover+spacer is for that more squared style stem or will it work with the rounded stems?
Square, I think I used it on a flat FSA stem a while ago. Its not ridiculously cheap looking 3D printed shite either like some other spacers that are being sold on AliExpress. I still have the headset top cap from that set and it is comparable to OG-Evkin spacer set.
Edit to say, you are talking about the link I posted earlier, correct?