1. Cell phone holder size: 5.5 ~ 8.5 cm, adjustable cell phone holder is suitable for different cell phone widths (with or without protective cover). e.g. iPhone 12 11 XR Android smartphone, Samsung Galaxy / Note, Huawei. Maximum suitable for cell phones up to 6 inches in diagonal screen size.^ 2. Universal for most devices: A good aid for matching photo tripods and smartphones. fits common tripods, international general screw / 14 standard screw head.^ 3. Protect your phone: Stable fixation of the smartphone per one adjusting screw, stronger strength than other spring holder. Softly padded side panels protect your smartphone against scratches and slipping.^ 4. Screw thread can be rotated 360 degrees: Two different mounting options. You can flexibly choose between portrait or wide-screen recordings.^ 5. Flexible usage options: Ideal for taking family photos, panorama photos, YouTube videos, time-lapse recording. Compact and light, easy to bring with you when traveling.