I was misled by the description.. first of all, they are not stickers (meaning adhesive or suction cups or something like that). They are simply a foamy material that sticks briefly to wet glass and then slides down after a while. The same thing happens with any flat lightweight object. The child couldn't stick them and make them stay in place, and of course, as soon as they get wet, everything falls down. In my opinion, it's not worth buying.