Free Form Textured Wrapping Ring With Star Insert 3d ModelItem Specifications: What is it?: This is a downloadable digital 3d model. This is not a physical item or a finished product. This is used as the first step in making the physical item. Measurements: Top outer diameter is 13mm and the inner texture plate is 8. 5mm. The wrapping bars around the top measures about . 8mm wide and flow smoothly into the shank which is 2mm thick tapering down to 1. 4mm thick in the back. This gives plenty of room to