The line is thick but not that easy to navigate. The little train must not "draw empty". Allow very large leaves as a child, it quickly out of the frame: see the end of the comment. Bad point: it is assumed washable. So far on clothes, on a cotton fabric sofa, on the head of the artist, that of his mother, no problem fortunately. But on a wall painted in acrylic, a magnificent blue line is barely dimmed. Pay attention to your walls !!! And on a waxed pine floors, hand felt almost completely with water and a little detergent. But not entirely: we see blurred spots where the relief does cleans the wood perfectly. On a polished table, the line is better party. So pay attention to your furniture, and all wooden objects! And of course do not expect a clean cardboard shirt. :-) Frankly for that side "washable or not," it's worth just 2 and a half stars. ps after reading other reviews: the plugs are very difficult to put in a little, yes. (20 months) So it never heal anything. And there, in 36 hours max, if you have found the cap, the felt is dry contrary to what I read elsewhere.
