Looking for Stairs with Sweep Architectural Set X4? Get this 3D model from modernarchstudio via CGTrader for $22.
STL (Stereolithography, filesize: 22.9 MB), OBJ (OBJ, filesize: 53.6 MB), 3DM (Rhinoceros 3D, filesize: 9.6 MB), 3DS (3D Studio, filesize: 11.7 MB), DWG (AutoCAD, filesize: 10.4 MB)