About this item ?1/4’’ Screw & Cold Shoe? The phone tripod mount is designed with standard 1/4” screw hole and cold shoe. The 1/4” screw is compatible with most regular-sized photo & video accessories, like tripods, monopods, selfie sticks, ring lights, stabilizers etc. The universal cold shoe mount allows you to attach microphone, LED light, cold shoe bracket and other accessories, helping you make more professional videos ?Universal Phone Holder for Tripod?The phone clamp is compatible with iPhone SE 2020/11/11 Pro/11 Pro Max/X/Xs/Xs Max, Samsung Galaxy S20 /S10/S9/Note 10/Note9, Google, Huawei and so on (any smartphone within 2.16 inch to 3.5 inch wide). You will like it when you need something to rest your phone on when taking photos and videos, without having to take off your case, fitting the need of smartphone photographers and video makers ? Screw-Knob Tripod Phone Holder? Different from some spring-loaded phone clamps, the phone tripod adapter uses a thumb knob tightening to lock your phone in place securely and the bracket which holds your phone is inlaid with anti-scratch & anti-slip rubber pad to protect your phone, which securely prevent your phone from falling and scratching ?The Best Pocket Size?Made of Metal, with the folded length of 106mm ,width 38mm and weights only 86.8g. This compact ST-03 can be carried in pocket easily . ? Universal Design?Holds any smart phone from 2.28" to 4.1" wide. Compatible with 4.3in to 7in Screen Smartphone.The ST-03 cell phone holder can be attached to any standard tripod (1/4-20), and can secure your cell phone for photos, videos or being used as a webcam or car GPS.