Age of the object: more than 2 months If you shake it, it will not fall down and will come back with a ring ?. Shake the rinrin ? Touch the ears to make a crisp sound ? While touching and playing, it promotes the development of the child's eyes and ears. Hand washable, very hygienic? It also comes with a cloth belt, so you can go out with a stroller or a bag to go out ? How to care? Wash gently with water. Do not use dryer. Please dry in a cool place.