Fits most standard car cup holder, no need extra tools. A flexible swivel ball for 360° rotation and a jointed arm for 270°. Press button on below of the car holder to slide open and then take out mobile phone. Press the arms on both side to clamp mobile phone again, simple of operation. One locking lever for installing and removing the car mount. Featuring one-button release curved arm and extendable feet, they all with soft silicone pad. Let your phone without scratch.