My 8-month-old grandson is now so alert and standing up in his crib and walking holding on to walls and he loves that he has these 'friends' to look at while in his crib and as he 'walks' along the walls.  These were so easy to put up and to move - I moved one of them 5 times and they are sturdy enough to be moved without tearing. So easy to work with and so colorful - my grandson just loves them!