This is the best device holder I've purchased! It has incredible hold for as much weight as the magnet will support. Having the holder come loose from whatever you stuck it to just isn't going to happen. I've had mine in my car for months and it hasn't budged. I have put many devices on the magnet and they all stay strong. The only complaint is the oval shaped metal piece is gold. It would be better for it to have been black. The smaller metal piece is significantly thicker than the oval shaped one and I wished it was a little thinner as well.