This is a US standart finger ring sizer.3d printable 3d models are attached. This is the most essential tools for the every women to keep it at home. 3d editable iges file format also attached. You can measure 1-17 US stander finger ring size. Please find my other sizer 3d model for Japan, EU and Asia standard.
Please contact with if you get any difficulty with the 3d files.
Thanks, Mahbub