Gel refill in ISO format G2 for the ultimate gel writing experience. The new gel generation Gelion+ with High Performance Gel satisfies with an extremely light and fluid writing feeling. Ultra quick-drying ink prevents smudging of the writing and is therefore also suitable for left-handers. With innovative formula for extended durability compared to conventional gel refills. Ball diameter 0.7 mm, writing colour black, waterproof according to ink standard ISO 27668-2. Fits all Schneider pens with Plug+Play system and many other brands of refills in G2 format.