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 or 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 or 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.