Tube/4 Worther (Woerther) 3.15mm Lead, Graphite Black, 7B
| Country | USA |
| Brand | Koh-I-Noor |
| Manufacturer | Worther |
| Binding | Office Product |
| PartNumber | 12510E |
| Model | 12510E |
| Color | Black |
| Height | 0.6299212592 |
| Length | 4.0157480274 |
| Weight | 0.04 |
| Width | 0.6299212592 |
| ReleaseDate | 2011-03-01 |