A fun picture book for children, exploring a 100-story house. It's great for kids who want to learn numbers, as they can count from 1 to 100 in a fun way. The mini size (17cm tall x 12cm wide x 1.6cm thick) makes it convenient to take with you on outings. The regular price is 990 yen (900 yen for the book + 90 yen tax). No cover.