Permanent ink dries quickly. Applies permanently to almost all surfaces, including glass, metal, wood and plastics. Xylene-free. For use with Pilot Jumbo Refillable Permanent Markers (Pilot 43100, sold separately). Refill Format: Standard Marker Cartridge; Refill For Series: Pilot Jumbo Refillable Permanent Markers; Refill Ink Color: Black; Color Family: Black.