Both used in large civil engineering and architecture and landscaping projects. They are concrete blocks that form the embankment retaining system through the assembly of pre-manufactured dry-fit blocks, without using mortar or concrete during the execution of the job. The system also has no need for pins or connectors to attach the blocks with each other.

They offer advantages for transport on site, fast assembly by hand, versatility for transformation into retaining walls with flower vases, resulting in high esthetic value jobs without affecting the environment, turning the modular blocks system into an excellent option.