Permanent ink dries quickly. Applies permanently to almost all surfaces, including glass, metal, wood and plastics. For use with Pilot® Jumbo Refillable Permanent Markers (PIL43100, sold separately). Pen Refill Type: Permanent Marker; Special Ink Type: Permanent; Refill For Series: Pilot® Jumbo Refillable Permanent Markers; Tip Type: N/A.