The Drehgriffel #1 Single Gel Pen Refill in 0.5mm - Black Ink is a reliable and precise solution to keep your Drehgriffel #1 Gel Pen equipped for smooth writing. Designed specifically for this model, the 0.5mm gel refill provides a fine and detailed writing experience. This single refill ensures that you can easily replace the pen's depleted ink, maintaining its longevity and dependable performance. With a simple installation process, you can quickly get back to enjoying the smooth and precise writing offered by the Drehgriffel #1 Gel Pen. Specifically designed for Drehgriffel #1 Gel Pen 0.5mm gel refill for fine and detailed writing Single refill for easy replacement Maintains longevity and dependable performance of the pen Simple installation for a quick and hassle-free refill process.