The Schmidt Rolling Supersteel 6124 rollerball is a reservoir-based refill with a metal tube and a stainless steel front section and tip. It has a genuine ruby 0.7mm diameter ball for a medium writing stroke. 

**Product Details** 
-  Refills by Schmidt Made in Germany)
- For use with ANY Brand International European standard size refill.
- Length - 4 5/16" (11cm); Diameter - .245" (0.62cm)
- Various Colours & Tip Size
- High quality and reliable for strong, precise and clean lines.
- Sophisticated ventilation system that stops the ink drying for extended shelf life
- Each refill is brand new and capped.
- Pack of 1 Refill
- ® The trademarks of the pen manufacturers are identified only for the purpose of providing refill compatibility information.