Thank you for viewing! т т They are attached to backing sheets, so you can just slip them into your sticker book, which will increase the thickness > ·̫ < Also, highly recommended for those who prioritize extras!! This time, I've included more and more luxurious extras than usual. (From 1 sticker to a whole Bonbon Drop sticker, etc., I'll increase the quantity based on the current stock! Currently, there's a chance to get even more extras! *Please refrain from complaints regarding the contents of the extras.) Of course, the set itself is great, but I'll add "even more extras" for bulk purchases! If you're interested, please don't delay! Bonbon Drop Stickers Tamagotchi Stickers Sticker Book Official Product Nakamura-kun Heisei Girls (referring to a generation) Drop Stickers Sanrio Hello Kitty Kuromi Food