A good helper for camera tripods and smartphones. Suitable for ordinary tripod, selfie stick with 1/4 standard screw head. (Note: The tripod in the picture is not included) Mobile phone holder size: 56mm-105mm, adjustable mobile phone holder suitable for different mobile phone width (with or without protective cover). For example, Iphone 7 Plus / 7 / 6sp / 6p / 6s / 5s, Android smart phones. It is suitable for mobile phones with a maximum diagonal screen size of 6 inches. Fix the smartphone with the adjusting screw, which is stronger than other spring mounts. The padded side panels protect your smartphone from scratches and slips. The thread can be rotated 360 degrees: two different installation methods. You can choose between portrait and widescreen recording. Flexible use, very suitable for taking family portraits, panoramic photos, videos, and time-lapse videos. Small and light, take it with you when you travel.