Item Details:

*Brand : Kaigelu
*Nibs Size:
MF (It can have the effect of M(about 0.7mm) or F(about 0.5mm), depending on the angle of writing)
*Length: 35mm
*The spare nibs are compatible with #6 fountain pens, such as jinhao 100, 450, 699, C1

***Package Included: 
2PCS Nibs; 2PCS Feeds