Thank you for viewing. This is "Itsuka wa Tatchi de... Asobi ta Issu" by People. • Target age: 4 months and up • A new toy that supports and encourages developmental exercises from rolling over to standing. • You can play in various positions as your child grows, from rolling over, crawling, sitting, and standing. • The koala (removable) with a built-in vibration sensor cheers you on with talking and fun sounds every time you grab it (15 types of cheering talk & melodies). • Uses 2 AAA batteries (sold separately). Weight capacity: 25kg The koala's operation has been confirmed. (I will include batteries for confirmation, although I don't know how much charge is left) There are no noticeable stains, but since it has been used, there may be some unavoidable dirt, fluff, and small debris. We appreciate your understanding and purchase. m(_ _)m