This specific 3D model, "Steel barrier Low-poly 3D model buy", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
This specific 3D model is provided under the "Unknown license" framework.
BLEND (Blender, filesize: 1.05 MB), OBJ (OBJ, filesize: 448 KB), FBX (Autodesk FBX, filesize: 96.8 KB), GLTF (glTF, filesize: 74.4 KB), ABC (Alembic, filesize: 35.9 KB), DAE (Collada, filesize: 144 KB), STL (Stereolithography, filesize: 55.9 KB)