Olixar Phone Magnet Sticker, Phone Case Magnet - Put in Phone Case and Use with Car Phone Holder - Thin Magnets Stickers Mount Magnetic Plate - Black, Silver, Rose Gold & Gold - Universal - 4 Pack

The strength of these is almost scary! Lol. This was definitely worth the buy. Will only stick to opposite magnet. Does not just adhere to metal objects

Popped these in the back of my phone case- no need to stick them on the phone. Keeps my iPhone securely on magnet mount for use as sat nav

Very sturdy and worked well.

I have seen other reviews saying that the iPhone just comes off the magnet, however, if you just stick the magnet on your phone and cover with a case it stays on as long as you like! Thin piece of metal too so it fits under my case. Defiantly way better than using the iPhone holders as they always come off!!

Why didn't I read the reviews?! Maybe because I just saw the 4 stars and saw that it was strong even through a phone case. But upon receiving it I found it is not magnetic at all. Just a fancy piece of metal. I'd pay $4-$5 and feel fine about them, but $11 isn't worth it.It is easy to install, is thin enough to fit inside my case without problems, but it isn't too strong. My phone sticks to the magnet in my car, but if my phone/case was bigger or heavier, I don't think it would work. I haven't driven my car with it set up yet, but I don't have high hopes.This review is intended to help bring down the rating because the initial description leads us to believe these things are magnetic, but again, they're not!