The delivery was really fast (2 days), but the whiteboards have had some scratches and dents from the outset. Are on the frames partially brown discoloration (rust?) To find but generally they do it for the purpose. You can write on it and (at least if one wipes it again shortly afterwards leave, a long time I have so far not been tested) it virtually leaves no sticky residue Clear (there where the text was to remain white stripes, but you do not see a slight distance ).