Hello Kitty Backpack Set - Bundle with 12” Sanrio Mini Bag, Stickers, More | Hello Kitty School Supplies Pack for Kids, Boys and Girls. This Hello Kitty backpack measures 12" x 8" x 4" -- the perfect size for preschool kids. This Hello Kitty preschool backpack comes with adjustable shoulder straps and 2 front pockets. Sure to be a hit with all Hello Kitty fans, this Hello Kitty mini 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 stickers and a Beach Kids cat door hanger. This set is perfect for Hello Kitty school supplies. Officially licensed Hello Kitty merchandise. Sure to delight any Hello Kitty fans - girls and boys alike. Entanglement Hazard. Keep away from very young children. Do not place around neck. WARNING: CHOKING HAZARD—Small parts. Not for children under 3 yrs.