Recommended material - silver or gold! Approximate metal weight : gold 14k – 16grams; silver 925 Sterling – 12 grams. Model volume : 1198 cubic mm. Model avalible in Rhino and STL format for prototyping. Geometry is healed, and fixed all the bad with RP Magics software You can check out my other products by clicking on the author name artchagur. Any questions? Please contact me. Thank you!