- Material
- Copper
- No. 5 (diameter
- 15.7mm, circumference: 49.6mm)
- No. 6 (diameter
- 16.5mm, circumference: 51.8mm)
- No. 7 (diameter
- 17.3mm, perimeter: 54.4mm)
- No. 8 (diameter
- 18.1mm, circumference: 56.5mm)
- No. 9 (diameter
- 18.9mm, circumference: 59.5mm)
- No. 10 (diameter
- 19.8mm, circumference: 62.1mm)
- No. 11 (diameter
- 20mm, circumference: 64.6mm)
- No. 12 (diameter
- 21.4mm, circumference: 67.2mm)