Suphouse Adhesive Magnetic Square / Magnetic Strip Tape, 72 Sets Flexible Magnet 3 x 3 CM 1 Sheet, Magnetic Sheet with adhesive Backing for DIY Crafting, Hanging or Organizing Home Office Objects

I'm an elementary school teacher and theses are awesome. I've found many use for them in my classroom.

I've bought it to mount a 10" Android tablet to the wall and it worked great (s. pictures). I actually had given a 5 star rating, but he cover-sheet which should protect the back with the glue on it was totally ripped and I was only able to use about half of the magnetic pieces, because the rest was glued back to back.The glue works good - just make sure you clean the wall (e.g. from the fridge) before you attach them - otherwise they will fall off ... sure - common sense ...Hopefully the manufacturer will provide a more stable back cover in the future.I've found also a video on YouTube, which shows how to use them.

Exactly what I was looking for.