3d chain for 3dprint size 9mm ready 3d print stl file ** one chain one piece 19cm**Approximate metal weight 14 karat gold-9.90 grams / 18 karat gold-11.50 grams 21 karat gold -13.20 grams 925 sterling silver-8.80 gramsThe model is corrected with the RP Magic program and is ready for printing.You can see the full image in the attached picture.Flexible model for casting