This toy is quite expensive for what it is. Dolphins are very large in size surprised me, they sound good when they are immersed in water, but it must "have the hand" (some parents deplore not happen: we must plunge and gently angled, and it's like a whistle)! Apart from that, they are hard plastic, fit with the rings and that's it ... I bought the Tommy Poulpy together and I prefer the latter, my daughter draws more fun.