Magic Joke Ball Pen Invisible Slowly Disappear Ink Within

The accessory of the pen refill writing tool can be replaced multiple times. A tubular object containing ink or ink in a ballpoint pen tube or fountain pen tube, with a metal nib at the front end and a writing ball embedded on the nib, also referring to the graphite strip (pencil lead) in a pencil. The pen nib is a rubber tube or suction type water pipe inside the pen tube. The most common neutral pen refill has a tip diameter of 0.5mm, and the most common neutral pen refill style is a bullet tip. Neutral pen refills should be used properly, otherwise it may cause uneven oil discharge, broken beads, and water leakage. When using pencil refills, excessive force should not be used, as it may break the pencil refills. A miniature pen maker can be used to assemble neutral pen refills.
Common classifications of pen refills:
Full needle, half needle, bullet head (most common), gourd head
Ink cartridges, also known as ink cartridges, ink cartridges, etc., are mainly used to replace ink cartridges in matching fountain pens and tubes containing ink.
Ink bags are tubes containing ink that can be inserted directly into a pen and covered with a lid. They are disposable and usually contain a small bead inside to prevent ink from splashing out. Although it is more practical, the cost-effectiveness is not particularly high. After using up the ink in the ink bag, discard it. In addition, similar products also have ink absorbers that can absorb ink and be used repeatedly like regular pens.

• Novelty:Yes
• Material:Plastic
• Use:Office & School Pen
• Writing Point:0.7mm
• Origin:Mainland China
• Type:Ballpoint Pen