Retractable marker for easy one-handed operation--just click and write. Safety Seal? valve prevents leakage and dry-out, and there is no cap to remove or lose. Durable ultra fine point tip produces precise marking and writes on most hard-to-mark surfaces. Quick-drying ink is waterproof, smearproof and fade-resistant. Marker Type: Permanent; Color(s): Black; Tip Type: Ultra Fine; Ink Types: Non-Washable.