What rack system to the pros use?

[BornToHerp]

I'm trying to figure out what rack systems the "big names" in ball pythons use to house their snakes. Some of the videos I've seen look like Freedom Breeders, but I'm not sure. My collection isn't massive but it's always nice to dream! Thx

[Stewart_Reptiles]

Big breeders often use Freedom Breeders and ARS.