Biaxial geogrid is a type of geosynthetic material that provides high strength and stability by reinforcing the soil in two perpendicular directions. It is typically made from polymer materials such as high-density polyethylene (HDPE) or polypropylene, which are both durable and resistant to environmental factors like UV radiation, moisture, and chemicals. The key characteristic of Biaxial geogrid is its structure, which consists of a grid of interlocking ribs that provide additional support to the underlying soil, thus preventing shifting or settling over time.