This pack includes various wall version, in specific:

10 concrete wall H50-200-400
10 stone wall H50-200-400
10 brick wall H50-200-400
7 small wall with concrete railing H150
17 small wall with iron railing H150
9 small wall with wooden railing H150
1 High Speed Railway railing

Note: in the railing version, the railing itself is only 2D not to decrease the simulation performance and the in game fps.

Read the included manual for installation and usage.