Protect the environment and refill your gel pen: The FRIXON replacement refills for the Ball/Pro pen are available in various colors in a set of three. The line width is 0.6 mm. With these replacement refills, you can equip your FRIXON gel pen with new tips instead of purchasing new writing instruments. We offer the refills in different colors, allowing you to change the writing color as needed. The gel's unique texture makes writing particularly smooth, which is especially beneficial if you do a lot of handwriting. The diameter of the refill ball is 1 mm, corresponding to a line width of 0.6 mm. This is a comfortable width that ensures legible writing. The pack contains three refills, providing you with a sufficient supply for an extended period. Additional details: Replacement refills for the FRIXON Ball/Pro, type: gel refill, barrel material: plastic, available in various colors, refill diameter: 1.0 mm, line width: 0.6 mm, contents: 3 refills.