About this 3D model

Use these STL files to help design rings for the JEWELLERY COMPETITION. They are modelled with internal diameters ranging from 15.7mm to 20.68mm equivalent to U.S ring sizes 5-11 AND BRITISH AUSTRALIAN ring sizes J1/2 - V1/2. SEE OFFICICAL INTERNATIONAL RING SIZES CHART IMPORTANT: Use these templates as a guide for internal dimensions only!