A copy of the ring known brand, available in sizes from 17.1 mm to 20.6 (5 rings)
Native Formats: 3DM (Rhinoceros 3D, filesize: 83.3 MB)
Exchange Formats: OBJ (OBJ, filesize: 4.81 MB), 3DM (Rhinoceros 3D, filesize: 83.3 MB), STL (Stereolithography, filesize: 3.88 MB)