Every child is born with an innate musical sense. Just give your kids the tools to let them out. This musical instrument set comes with 4 instruments - xylophone, shaker eggs, tambourine, and claves. This set can not only improve physical skills: sensory processing, gross & fine motor skills, and sense of rhythm but also can improve cognitive skills: imagination & creativity, curiosity & discovery, self-expression & confidence. This shows that music is not only fun but beneficial for cognitive development!