Valid for use within 60day(s) from the date of issue; Invalid after expiration • Free admission for children under 3 years old• Free coin lockers are available throughout the museum, such as on the 1st floor next to the information booth, on the 3rd floor next to the stairs, and on the 4th floor next to the Peek-A-Boo room (Insert JP¥500 into the coin locker and get your money back after use)• Baby strollers can be rented free of charge at the information booth on the 1st floor (strollers are limited and are for use only within the museum)• Eating and drinking are not allowed in the kids' spaces and playrooms. For those who will bring their own lunch, you may eat at the multipurpose room on the 4th floor• On average, guests stay in the museum for about 2-4 hours• Smoking is not allowed inside since this is a children's facility. If you would like to smoke, please use the ashtray located near the exit of the building. Alcohol is also not allowed