My love them.
Although you might have a few more of these stoppers, so that they better keep something and does not slip so quickly, but she's also so fully to our satisfaction.
My children ask when bathing like it on her bucket and run water through the holes.
From time to time it happens sometimes that falls the bathing tub cover in the tub, but my kids do not mind. Sometimes they let them flop with intent in the tub because it injects so beautiful.
For children in the tub a very good complement to the games.