i have a question thought was ia magnetic paint
Well, the paint is not actually magnetic. There are tiny iron particles mixed into the paint, which doesn't have a very exciting color by itself. You paint your wall with a few coats of this iron-particle-paint and when that's dry you put your desired color over it to make it blend in with the rest of the room (or stand out or whatever). I've seen the 'magnetic paint' topped with chalkboard-paint, which is also a super idea (if you happen to like black walls you can write on *and* stick magnets onto).
The good thing about this 'magnetic paint' not being magnetic is that you can put computers/harddrives and stuff right next to it and it won't hurt them. The bad thing is of course that you can't just stick any old pieces of metal on there, but only magnets. Like a giant fridge door