Gel ink is fade-proof and water-resistant. Acid-free for long-term archival storage. uni-ball® ensures premium quality performance with every refill. Refill Format: Standard Gel; Refill For Series: uni-ball® Gel 207™ IMPACT RT Gel Ink Pens; Refill Ink Color: Black; Color Family: Black.
Features:
Features:
- Fade-proof and water-resistant gel ink.
- Acid-free.
- uni-ball® premium quality performance.