The eight border wall prototypes commissioned by the Customs and Border Protection agency in 2017 were demolished on Wednesday.

The prototypes were torn down to make room for a segment of new fencing.

The prototypes were made partly of concrete and partly of other materials like steel, and were tested by tactical units against breaching and scaling techniques.

Eight border wall prototypes were knocked down on Wednesday after serving for more than a year as the embodiment of President Donald Trump's attempted crackdown on illegal immigration.

The prototypes were demolished to make room for a segment of new fencing .

Seven of the prototypes went down within just two hours, after crews got to work using a hydraulic jackhammer on an excavator, according to the Associated Press . The last prototype took longer to take down.

Here's what the destruction looked like:

In October 2017, the Customs and Border Protection agency unveiled eight different versions of a wall just outside San Diego, California.

Reuters/Jorge Duenes

They were intended to serve as test runs for the wall Trump has promised since the early days of his presidential campaign.

Agence France-Presse/Guillermo Arias via Getty Images

Four were made of concrete, and four were made of other materials, such as steel.

Agence France-Presse/Guillermo Arias via Getty Images

Each was 30 feet tall, and reportedly cost between $300,000 and $500,000.

Agence France-Presse/Guillermo Arias via Getty Images

Source: San Diego Union-Tribune

Tactical teams spent weeks trying to go under, over and through the walls to test their strengths and weaknesses, and used tools like jackhammers, ladders, saws, and blow torches.

Agence France-Presse/Guillermo Arias via Getty Images

Now, instead of a wall using the prototype designs, a new 30-foot high bollard-style fence will be built where the prototypes stood.

Agence France-Presse/Guillermo Arias via Getty Images