edding BTK 25 refill service whiteboard marker - safe and easy refilling Once there isn't any ink left in an edding whiteboard marker, it easily gets ready to write again by simply standing it into the refill bottle for at least an hour. A convenient and eco-friendly solution to prolong the marker´s lifespan. With a positive impact on the environment and saving money at the same time. Refill ink with capillary system, ideal for clean and straightforward refilling of almost all edding whiteboard markers The refill bottle has a volume of 25 ml Simply stand the marker nib downwards in the refill bottle for at least an hour, or ideally overnight. And the marker is ready to write again Available in the colours black, red, blue and green With no added butyl acetate Low odour Lightfast Quick-drying Easy handling Refilling is eco-friendly as it reduces the waste of materials High-quality brand product Made in Germany Simply stand the marker nib downwoards into the refill bottle for at least an hour, or ideally overnight, and the marker is ready to write again