i bought these hearts for my daughters room, who is a teenager, they are really lovely, they are easy to put on, and take off again if you have put them on wrong.or dont like how you have put them on. i have put them on her bedroom door,and what a difference it makes to her room. i still have half the packet left. i have just ordered the butterfly ones, i'm going to do hearts and butterflies on the walls, my daughter is 16 yrs old and she loves them. so there is no age limit to these stickers. THEY ARE A MUST HAVE IN ANY GIRLS BEDROOM.