Quartzite (dyed blue) Ball shape
丸玉系
| | | ||
| 無穴 ball without-hole | 片穴 ball half-drilled | 貫通穴 ball full-drilled | カット片穴 facet ball half-drilled/16ins | カット貫通 facet ball full-drilled/16ins |
| 2mm | 2mm | |||
| 3mm | 3mm | |||
| 4mm | 4mm | |||
- 無穴 2mm ／ Ball(without-hole) 2mm
- 無穴 3mm ／ Ball(without-hole) 3mm
- 無穴 4mm ／ Ball(without-hole) 4mm
- 片穴 2mm ／ Ball(half-drilled) 2mm
- 片穴 3mm ／ Ball(half-drilled) 3mm
- 片穴 4mm ／ Ball(half-drilled) 4mm