I bought the marker a few months ago and I must say, the markers are really very good. They keep even after months still a strong color. I know that different for me from the university. The marker used there dry out very quickly and are unusable. The markers of the company edding are simply good. They have bright colors and can still very easily wipe again. For most applications, the four colors are perfectly adequate. For me it is the best Boardmarker I've ever seen. And for the price this is really a great offer.