Adjustable grip fits most iPhones android and Windows smartphones with or without a case between 2.1-2.8 inches/54-72 mm wide Internal steel springs - mount expands to the size of your device and grips securely Reliable rubber grip pads - secure phone in place, even when turned sideways Foldable and portable - mount legs fold in making it east to fit in your pocket or bag Lanyard hole - attach a lanyard to the mount and add to your keychain so it's never left behind. 1/4-20 inches universal tripod screw - connects to all GorillaPods and most other tripods