- Magnetic technology is safe to use and will not damage any smartphone. The carbon steel plate inside the magnetic car holder is ultra-thin and designed in such a way that it has strong holding force and absorbs magnetic instability. In addition to security, it is also powerful, it can quickly attract any phone - this is fast and fast. Users can easily access the phone by simply placing it close to the cradle, so users no longer have to make a fuss about keeping their phone.