These 4 BIC Velleda 1721 dry-wipe markers have a fine tip that is compatible with BIC Velleda whiteboards and blackboards. They are available here in 4 classic colours (black, blue, red and green) for your important messages. Equipped with a durable blocked tip, these Velleda marker pens are perfectly suitable for use by children. These whiteboard markers wipe off dry very easily, whether right away or even after several days. Their neutral smell is perfect for long school work or home use without any problems.