New twist on a favourite classic: Now with brighter, bolder colours in an exclusive blue box. Colour matching: Six eggs with stacking shells kids can match, either to the bases or the faces. Shape sorting: Each egg fits into a different shape in the base and squeaks when pressed down. Promotes learning: Develops logical thinking, improves attention and stimulates memory. For boys and girls: Suitable from 6-36 months. No batteries required.