Please write in a remark or chat when placing an order for a gift Sila tulis di remark atau chat masa membuat order untuk gift/hadiah Dear respected buyers, if there is damage to the item or it is not functioning properly, please notify the seller first in the chat, and don't rush to make a bad assessment or give 1 star, because that will be very detrimental to the seller. Suitable for boys and girls aged 5 years and over discover new energy principles, and enhance imagination and creativity! add salt water to the top box of the robot and it will walk it's amazing !!!