DescriptionThis item is a set of 6pcs ballpoint pen refills, which are suitable for almost all standard ball-point pen, with leakage protection, beautiful writing color in good quality. The cartridge tip is sealed, so can run out of ink or runs dry the pen.It is possible to give your ballpoint pens new force.Features- Ink color: blue. - Length: 10 cm. - Suitable for almost all standard ball-point pen. - With leakage protection, beautiful writing color in good quality. - The cartridge tip is sealed, so can run out of ink or runs dry the pen. - It is possible to give your ballpoint pens new force.