Strong magnetic grip: the C201 holder has 20 strong ring magnets that firmly hold your phone in place so you won't have to worry about it slipping or falling, even on uneven surfaces. Clear access: The charging port is kept accessible by the open design, allowing you to use your phone while it is in the holder. Tool-free Install: This straightforward snap-on installation attaches your phone instantly for convenient at-a-glance access without the need for any tools. Universal fit: You can enjoy dependable mounting anywhere because the flexible mounting system fits a wide range of phone sizes and models. Prevention of magnetic interference: the magnet design prevents signal problems even when it is in close proximity to the internal parts of your phone while it is in use.