This is a mount for a Displate poster, it utilizes magnets that can be purchased locally and command strips, my test print of it is currently holding to th wall just fine utilizing 3 neodymium magnets

these are the ones I used for my test: https://www.menards.com/main/hardware/fasteners-connectors/specialty-fasteners/magnets/magnet-source-reg-0-709-n35-neodymium-round-magnet-3-count/07047/p-1444439203159-c-19644.htm

I initially tested with 1 magnet, it didn't hold well enough so I updated it to use 3 magnets and it's working great now

I used regular superglue to glue the magnets into the mount