If you are looking for a high-quality rollerball refill to replace your original then this is a great quality option to consider.
This refill is manufactured in Germany by Schmidt and writes very smoothly with ink that rolls onto the page freely and dries quickly.
The ink colour in this refill is blue and the medium point is 0.7mm
This is the correct size refill for most rollerball pens on the market and with a length of 110.6mm and a diameter of 6.3 mm it is compatible with many brands including Hauser, Hugo Boss, Itoya, Krone, Lamy, Monteverde, Montegrappa, Omas, Pelikan, Retro 51, Rotring, Visconti, Waterford, and many more.