For new admissions and the new semester ♪ Demon Slayer: Kimetsu no Yaiba Key Case (Tanjiro Kamado) Unused item without tags. [Features] ⚫︎ The opening is 8.5cm wide, making it easy for small children to use. ⚫︎ Keys can be removed by unfastening the snap button at the bottom of the product. ⚫︎ It's very convenient as you can extend the reel to open and close the keys while it's attached to a backpack or rucksack.