This is a box. This model created in blender 2.81 & render in Keyshot & cycle.

1. The clean model with proper topology 2. proper UVs unwrapped 3. Blend, obj, Fbx, ABC, DAE, ply, USD, Keyshot(KSP file with UVs) are available 4. Ready to render the scene. Thank you! Kind Regards Sumon