This specific 3D model, "Low-poly Knife Low-poly 3D model purchase", is an asset made available by "Unknown author".
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The license for this digital asset is "Unknown license".
OBJ (OBJ, filesize: 487 KB), TEXTURES (Textures, filesize: 9.96 MB), FBX (Autodesk FBX, filesize: 203 KB), GLTF (glTF, filesize: 9.97 MB)