Kit includes:
2x C-Frames (double sided)
C-Reflectors 100x100cm Diff 1-4
4x  C-Protectors
1x C-Cleaning

Some nice details:
Round corners for indoor use.
Holes for ropes to handle the frame on top stick.
Lock lever friction system that doesn’t loose it’s friction.
Replaceable plastic corners and exchangeable reflectors.
Upgrade option: detachable yoke for easier transport in smaller vans.