This is a set of 8 aluminum standoffs, with an anodised finish (37mm). Threaded on both ends for a M3 screw.
- 8x aluminum 37mm standoffs
ZMR250 owners these won't fit your quad, I didn't check the length before I bought these (fault of my own), assumptions are the mother of all **********.
If you aren't using the mount for the FPV camera then you're good to go (with a slightly taller quad).
That said, build quality is really decent!