Good stickers - kid approved! They are easy to peal off the paper, and stick great - all over the room! You just need to make sure you have enough wall space!! I haven't had the need to remove and re-position any of these wall stickers, so I cannot speak to the durability of adhesive or paint pealing. So far, so good! I would very much doubt that these would be able to mark the walls - but will update my review the day I'm forced to progress from Paw Patrol to whatever the next flavor of the month is.