Wedding Ring WR03Printable
Ring : WR03Size: 17mmGems: 1=3.7mm, 2=1.2mm;Recommended materials: Silver, White gold, platinum
How open STL format:File -> Import -> *.STL All Printable or 3D programms work with stl formats.
How open STL in Zbrush:Plugins -> 3D print -> STL import.