- Material: Copper metal;
- Purity:99.9%;
- Size: 1X1X1inch (25.4X25.4X25.4mm);
- Surface quality: 6 sides ground;
- Theoretical weight: 146.34grams;
- Actual weight:146grams(approximate);
- Range of application: element collection, education, gift and so on.
Thank you.
On Oct-25-17 at 17:10:09 PDT, seller added the following information: