Nib of a ballpoint pen. Ballpoint pens have an internal chamber filled with a viscous ink that is dispensed at the tip during use by the rolling action of a small metal sphere (blue) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Laguna Design |
Taille de l’image : | 4826 px × 3650 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |