This 3D Models is ready to be printed on a 3D Printer.7 files - 7 sizesRing sizes finger diameter: 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm.Weight gold 14K 585 :___Weight silver, Sterling 925 :sizes 15 - 4.9 g.______________________ - 3.8 g.sizes 16___ - 5.2 g.______________________ - 4.00 g.sizes 17___ - 5.5 g.______________________ - 4.3 g.sizes 18___ - 5.8 g.______________________ - 4.5 g.sizes 19___ - 5.9 g.______________________ - 4.6 g.sizes 20___ - 6.4 g.______________________ - 5 g.sizes 21___ - 6.7 g.______________________ - 5.2 g.