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Better ink circulation
This hole isn’t just for safety. It also plays a role in the pen’s proper functioning. How? By regulating the internal pressure.
When you write, air needs to circulate to prevent the ink from flowing unevenly or getting blocked. The hole helps balance this pressure between the inside of the pen and the outside, ensuring a smooth, even flow.
It’s like a little “air regulator” for the pen, allowing it to breathe to function smoothly.
An economical… and smart choice
In industry, every gram of plastic counts. Manufacturing millions of solid caps costs more than you might think. The hole, however small, helps reduce the amount of material used while speeding up the molding process.
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