The Vacuum phone case iPhone 13 Pro Max from Fidlock has a vacuum-magnetic force integrated into the case, which, in combination with a matching Vacuum base mount for smartphones, ensures that the phone can be easily attached to the bike using only magnetic force. A clever combination of vacuum and magnetic force also ensures that the smartphone can be rotated 360° on the holder. In addition, it does not slip off while riding, while a ball catch prevents the smartphone from twisting on the holder.