• Upgrade to MagSafe: Stick the included ring on the outside of your standard case and enjoy the MagSafe benefits for devices that do not support magnetic attachment. Do not attach the ring directly to your phone. You can also remove it but not use it again.• Double security: Thanks to the elastic straps made of extremely strong rubber.• Locking mechanism: Easy and quick opening and closing of the holder with the clever screw lock. The rubber surface on the inside provides additional grip and the surfaces are protected from scratches.