Hello Kitty Backpack School Size and Keychain Plush. Hello Kitty school size backpack and keychain plush charm. Has 2 side pockets for water bottle, 2 front zip pockets, lined interior with storage compartments, and 1 large compartment for books, lunch bag and more. Padded adjustable lightly padded straps make it easy for any age to use. Great for school or travel. Great for any Hello Kitty fan! Approx. 16"x4"x13". #school #hellokitty #backpack #plush #pink