Whiteboard marker in pen format | Ideal for smaller whiteboards and school writing boards | Can be left uncapped for 8 hours without drying up (ISO 554) | Can be dry-wiped from whiteboards and surfaces such as glass and porcelain without leaving a trace | Fast drying, low odour | Convenient clip cap | Airplane-safe - automatic pressure equalisation prevents pens from leaking on board aircraft | Locked tip