This page contains free "Light weight ring model 3D print model 4", which is a work by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
Usage of this 3d asset is subject to the "Unknown license" agreement.
STL (Stereolithography, filesize: 2.15 MB), 3DM (Rhinoceros 3D, filesize: 4.14 MB)