Marker for whiteboards and smooth surfaces such as glass and porcelain, ideal for use on dry walls. It does not leave lines and features a round tip of approximately 2 mm. The DRY SAFE formula allows the markers to remain open for a few days without drying out (ISO 554 test). The frame and needle are made of PP, ensuring high resistance to wear. It is quick and practically odorless, with a clip for easy use. It can be used during flights - the automatic pressure adjustment protects the markers from ink leaks during the flight.