ISO G2 gel refill for the best gel writing experience. The new generation of Gelion+ gel with High Performance Gel satisfies with an extremely light and fluid writing feel. The ultra-fast drying ink prevents smudging and is therefore also suitable for left-handed users. With an innovative formula for greater durability compared to conventional gel refills. Ball diameter 0.7 mm, green writing color. Fits all Schneider pens with Plug+Play system and many other brands of G2 refills.