I bought this as my partner had a magnetic support for his phone in the car and I wanted to use it too. The larger rectangular magnet is perfect to put on the bottom of my phone even though it has a finger ring on the back. Holds my phone steady and it's easy to pick up in a rush. No concerns, right product and although I only needed one, now I have spares in case anyone changes their phone or needs a replacement. I did my research and price-quality this was the best I found. Does the job it's meant to at a reasonable price, I don't think I'll need another one anytime soon.