Yup, and you could live off of the salad bar, alone. It is all you can eat. You are given a marker at the table, and you place the green side up for the servers to come by and cut the meat off of the swords. Flip it to red, and you stop them. No, there isn't a checkered side, but if you misbehave, there may be a black one. . . . .

I have been to these types of restaurants in several countries, and here in the US. They originated in the area around Sao Paolo. Fogo de Chao is a chain that is based there, with several restaurants here in the US.