To send your rentals back to us, feel free to use the box your books arrived in. If you use this box or any other previously used box, be sure to cover up all old shipping labels and markings.
If you no longer have the original packaging your rentals came in, you can use any size box or mailer to send your books back, as long as it will hold your books plus packaging material, which should be used to avoid damage while in transit. You can purchase boxes and other packaging materials at most mail centers, including your local post office or UPS Store location.