If you look at how easy this wiper is processed wonder I find out about the price. Magnet, Velcro for this carpet-like wiping article (interchangeable) and a simple plastic housing for 10 euro for sale I find already bit much. Wihteboard Combined with markers Lumocolor STAEDTLER he met just as its purpose. Red and black require a little more 'wiper' and more pressure (residual traces are then yet to be seen as little shimmer).
If I were not lazy to bring the part to the post'd ego complaint and unmarried union this carpet top pick me up and easy to use as a rag!