这是一个给螭首笔使用的笔芯适配垫圈。（原作者是：wuguigui）
它适配的是 Zebra JF 或 Pilot LP3RF 笔芯。
我找到的一部分国产笔芯，比如晨光G5，还有得力的几种长笔尖型号也都可以使用。但长度相比斑马或百乐，短了大约1mm。
我制作了这个垫片，能够让国产笔芯也可以正常使用，这种方式要比垫纸片、塞竹便看起来更优雅。
它有有外沿和无外沿两个版本：
有外沿的版本很牢固，不容易脱落，但是管壁较厚的笔芯无法安装（大约壁厚0.7mm以内的笔芯都可以）。
无外沿的版本容易脱落，但大部分笔芯都可以使用。
请根据需要选择。

如果粘不住PEI板请涂胶或者开启Brim。

This is a pen refill gasket for Dragon Pen use. (Original author: wuguigui)
It is compatible with Zebra JF or Pilot LP3RF refill.
Some domestic pen refills, such as the M&G G5, can also be used, but the length is about 1mm shorter.
Therefore, I have made this gasket, which can allow inexpensive domestic pen refills to be used normally. This method looks more elegant than padding paper or stuffing Bambu poo.
It has two versions: with an outer edge and without an outer edge:
The outer edge version is very sturdy, but the pen refill with a thicker wall cannot be installed (approximately within 0.7mm).
The without outer edge version is prone to detachment, but most pen refills can be used.
Please select as needed.

If the PEI board cannot be stick, please apply glue or turn on Brim.