BLM rings with rhodium plating and black enamel.
Easy to print and produce.
Designed for 3d Printing.
STL files have sharp edges for jeweler fine work.
Both rings STL actual size(mm) is:
All specs and dimensions for rings can be found on last image.
If you need another size for ring - contact me, it's free once time.
Do not forget you always can negotiate final price.