Little music lovers will perk up their ears, because with the HABA Discovery Stones Sound Fun, there are many different sounds to discover. It squeaks and clatters, rings and rattles - each of the six colorful cubes holds a different acoustic effect. Young sound explorers will have a great time playing with the HABA Discovery Stones Sound Fun, as they create all the sounds themselves, providing long-lasting enjoyment. This age-appropriate play promotes early childhood perception. Additionally, little ones 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.