The Unboxed Box support has been created for original Unboxed owners to give support to your card box in the critical areas that could be crushed while carrying the deck in your pocket.
The new Unboxed Evolution comes with these supports but they are still available to enable you to make another deck and fit these supports to it.
The box with supports fitted is now super strong compared to a box without them, when your box wears out just transfer the supports to a new box.
If you own Unboxed log into the tutorial and you will find the explanation video for the support and see how it is installed.
The supports are supplied with no tutorial link, log into the Unboxed Tutorial for details.