Super Rare ♡ Hello Kitty Denim System Planner 6-Hole Seal Planner Seal Book Heisei Retro 1999 Rare, Scarce '99 Approximately 14.5cm tall, 10.5cm wide, and 3cm thick. This is a super rare Hello Kitty denim planner from 1999. It was used as a seal book for exchanging stickers, which was popular at the time. As you can see in the photos, it shows considerable signs of use overall. The 6-hole closure works without any problems♪ As shown in the 15th photo, the button for opening the planner feels a little loose, but it should be fine if handled with care＾＾ It's hard to tell from the photos, but the light brown parts inside have a rough texture. Please refrain from purchasing if you are concerned about minor details or are overly sensitive. This is a rare and scarce item. Collectors, please take a look. *Shipped via Yu-Packet Post.