SPEED Calendar Stickers Rare Original Eriko Imai Hiroko Shimabukuro

This is a calendar sticker from the group SPEED, who were once incredibly popular.
I don't remember clearly, but I believe it was a bonus item from a book over 25 years ago.
Considering its age, I think the condition is good, but please check the photos and consider your purchase.

SPEED
SPEED
Sticker
Eriko Imai
Hiroko Shimabukuro
Takako Uehara
Hitoe Aragaki