It can be used as a mini sticker book or a mini album. It's heart-shaped and light blue, and cute as a keychain. It's cute as an "oshi-katsu" (supporting your favorite idol/character) item or as a sticker book. My children also stick their favorite stickers in it and carry them around. This one is light blue, but there are four colors available. They're cute even if you collect them all. I have other items for sale, so I can offer a discount for combined purchases. - Set Contents: 24 pockets - Design: Heart-shaped light blue keychain - Material: Transparent plastic Thank you for viewing.