Hello Kitty Preschool Backpack - Bundle with 11” Hello Kitty Mini Backpack, Hello Kitty Stickers, More - Hello Kitty School Backpack for Girls Toddler Kids. This Hello Kitty backpack measures 11" x 8" x 3.5" -- the perfect size for preschool kids. This Hello Kitty preschool backpack comes with adjustable shoulder straps. Sure to be a hit with Hello Kitty fans of all ages, this Hello Kitty backpack set makes a great gift for anybody who loves Hello Kitty and pairs perfectly with all other Hello Kitty merchandise. This Hello Kitty mini backpack set also includes Hello Kitty stickerland and a cat door hanger. This set is perfect for Hello Kitty school supplies. Officially licensed Hello Kitty mini backpack set. Pair this with other Hello Kitty merchandise. Manufactured by Fast Forward.