Uni-Ball 207 Impact Pen delivers an ultra-smooth ink flow from a 1mm tip. The uni Super-Ink provides three-way protection to help guard against water, fading and fraud. Innovative, spring-loaded clip automatically retracts when clipped onto your pocket. Smooth rubber grip provides superior writing comfort and control. Barrel reveals the acid-free ink supply so you know when to refill the gel pen. Pens are refillable.