This is an item of stationery (paper or writing goods), or other small merchandise such as good-luck charms, mascot straps, et cetera.
Featuring the cover of the 50th-anniversary issue of manga weekly Shonen Magazine, here's a fantastic first calculator for kids! This sturdy 7 x 10-inch plastic marvel is hinged down one side, and opens to reveal a big-buttoned calculator inside. A game-prize item from Sega, it runs on two LR-44 (AG13) button batteries; test batteries are included.