I also have the same ring style with different dimensions of 6mm, 8mm, 10mm and 12mm wide 3dm + Stl files are intended for 3D printing please contact for changes.
Native Formats: 3DM (Rhinoceros 3D, filesize: 26.7 MB)
Exchange Formats: STP (STEP, filesize: 14.3 MB), STL (Stereolithography, filesize: 39.8 MB)