Tinksky 6pcs 10CM Blue Ballpoint Pen Ink Cartridges Refills[Product Information]- Enter your model numberto make sure this fits.
- 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.
