Mobius Wedding Ring 4mm wide band.This ring is created in USA ring size 7 8 9 10 11 12 13 14 15.This ring can not be modified since its created in zbrush software. This product is designed in zbrush and imported to Rhino. This is not Rhino Nurbs product. This is STL file and its ready for 3D printing , Please look at the pictures for more information. This is STL file and its ready for 3D printing, Please look at the pictures for more information. Note: This product is designed in zbrush and this is not Rhino nurbs file. Please look at the pictures before purchase of this product for more information.