The Trump administration unveiled eight prototypes for the US-Mexico border wall in October.

Six companies were commissioned to create four concrete prototypes, and four prototypes made of “other materials.”

President Donald Trump is visiting the prototypes on Tuesday. He said he’ll choose the one he likes best.

In October, Customs and Border Protection unveiled eight prototypes on for President Donald Trump’s long-promised wall along the 1,900-mile US-Mexico border.

On Tuesday, Trump is visiting the prototypes to inspect them for himself. “I’ll see you at the wall!” he said as he boarded Marine One on the way to California.