3d chain for 3dprint Flexible model for castingsize 8.00 mm ready 3d print stl file ** one chain one piece 19cm** Approximate metal weight 14 karat gold-12.50 grams / 18 karat gold-14.59 grams 21 karat gold -16.67 grams 925 sterling silver-12.00 grams The model is corrected with the RP Magic program and is ready for printing.You can see the full image in the attached picture.