Filling station for refilling whiteboard marker 351 and 351 B. The pen is ready for use again after a few minutes and completely refilled after 3 to 4 hours. Practical refill station for neat and easy refilling. Simply insert the pen into the refill station. Impossible to overfill the pens. Contents 30 ml. Colour: black. Caution: Highly flammable, causes serious eye damage and may cause drowsiness. Safety recommendations apply.