This is a mini keychain set from the early days of Dokodemo Issho (Together Anywhere). The box slides open, and it's not too damaged. The difference in height between the characters is also reproduced. The length of the ears (excluding the ears themselves) is 3.5 cm to 5.5 cm. A thin ball chain is attached, so you can hang them. I've kept them displayed in the box. Since these are old items, there may be unexpected deterioration, but please understand.