6 9 months baby plays with the balls holding them in her hand and shaking them to hear the fun rattling sound she further explores them with her mouth holding a ball in each hand she bangs them together musical stack ball game elephant9 12 months after she has learned to sit up baby enjoys dropping the balls through the large opening in the elephantss body into the base she drops the balls and watches them fall amused at their reappearance in the small tray which she will just