I think they are plastic sets that are commonly used in Russia. I don't know who makes them or sells them. I've just seen them used in other YT videos of games and tournaments that are played in Russia.
does anyone know what set they are using in this eric rosen video?

The unstable, shake and wobble of those unweighted plastic pieces is hilarious. I wonder if they intentionally used those pieces in this friendly game to keep it fun.

I think they are plastic sets that are commonly used in Russia. I don't know who makes them or sells them. I've just seen them used in other YT videos of games and tournaments that are played in Russia.
could you link me to videos that you have seen the sets in (if you remember?) I may be able to reach out to organizers of events they are used in

The unstable, shake and wobble of those unweighted plastic pieces is hilarious. I wonder if they intentionally used those pieces in this friendly game to keep it fun.
Good catch, i didn't notice. If i figure out what they are, I'll look for a weighted version

CFN channel https://www.youtube.com/watch?v=ajaoPPwkKTQ

CFN channel https://www.youtube.com/watch?v=ajaoPPwkKTQ
thank you, I commented and messaged them on instagram
https://www.youtube.com/watch?v=BoaflUenko4
it also appears at the end of a recent akanemsko video - at 10:02
https://www.youtube.com/watch?v=q-0f4mpOTEQ
any help is appreciated <3