This is the Butterfly (Or Not) Camping Chair from TS4, converted for TS2. I know that may not be the name in English, but my version of TSRW spontaneously made everything Mandarin Chinese. No, I don't know either. So, there's the name for that, I guess? It comes in every single recolour and can be found in dining chairs.
Do you like what I do? Then I'd love if you donated. Any amount helps!