Maybe write to Rode directly? They are quite available

Yes, I know that. This clamp is a weak point and I couldn't find the exact same one anywhere. However, other clamps on sale from Rode are also much better, but relatively expensive. Another weak point, also not found anywhere, is the locking nut on the jack plug of the lavalier mic, which I quickly lost and couldn't find a replacement. Perhaps someone can help me here?

I only know the LAV-CLIPS from RØDE::
RØDE LAV Clip - Set of 3
I have not yet seen identical ones from the Lavalier II set as spare parts.