The model can be used for production, for casting and machining.STLModel is ready for prototyping on CNC and 3D Printing.ring size 8; 18.0Triangles All (3 parts) – 997668Vertices All – 1Metal Weight: Gold 14k – 2.04 gramsGold 18k – 2.38 gramsSilver- 1.61 grams