Sleek pen perfectly straddles the line between marker and pen, providing you with bold, bleed-through-free writing that stands out. Special tip-feed technology prevents dry-out, even when the pen is left uncapped for extended periods of time. Quick-drying, nontoxic water-based ink helps you keep smudging and smearing to a minimum. Special Ink Type: Water-Based; Pen Style: Stick; Ink Color(s): Black.