120 Pieces pen ink cartridges fountain pen refill pens standard size cartridges with 3.4 mm bore diameter for calligraphy pen fine writing

Features:

Smooth ink flow:
Our fountain pen refill slides on the paper smoothly and is unobstructed, and the ink needs to dry in a few seconds, so the handwriting is not easily stained when you write or draw.

Practical gift idea:
You can present this fountain pen ink to yourself, or you can also send to your sisters, brothers, relatives, colleagues as a gift at Thanksgiving Day, birthday, graduation, family gathering, holiday or other occasions.

Specifications:
Material: plastic, ink
Size: approx. 2 inches/ 5.1 cm in the length
Bore diameter: 3.4 mm

Package includes:
120 x Pen ink cartridges

Note:
Please check if the size matches the one you need before buying.
1. Align the ink sac finely with the bayonet and press firmly until you hear a click.
2. After installation, leave the pen upright for one minute to write.
3. Press hard.