Ladies Rope Ring 19 SIZES PACK for 3d printincludes 19 US sizes from 4 to 8.5 (4, 4.25, 4.5 etc.) (14.85-18.57mm)weights for US Size -6.5gold 14k-2.7gr,gold 18k-3.3gr,siver-2.2gr,platinium-4.4grring width 2.5mm, thickness 2.5mmincludes file formats - stl (19 stl (for each size) in one archive )stl files are checked and fixed in Magics program.for any questions please contact me