Little music lovers will perk up their ears because with the HABA Discovery Stones Sound Fun, there are many different sounds to discover. There are squeaks and clatters, ringing and rattling - each of the six colorful cubes holds a different acoustic effect. Young sound explorers will have a blast playing with the HABA Discovery Stones Sound Fun and will enjoy it for a long time, as they create all the sounds themselves. This developmentally appropriate play enhances early childhood perception. Additionally, young children also develop their sense of musicality. And if the young explorers aren't in the mood for sounds, the HABA Discovery Stones can also be stacked like building blocks. But as soon as the tower falls, the funniest sounds return.