Also known as: 下駄箱
A Japanese shoe locker or shoe cubby. Commonplace at the entrance of Schools.
In Japan it is considered bad manners to wear shoes indoors, so when entering a home or school, one's outdoor shoes are typically exchanged for Uwabaki (slippers) at a getabako.
A common trope in anime is for students to leave a Love Letter in their crush's shoe locker.