This is a Japanese 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 1-27 Japanese stander finger ring size. Please find my other sizer for UK, EU, Swiss and Asia.
Please contact with if you get any difficulty with the 3d files.
Thanks,Mahbub