?STRONG AND DURABLE?The triangle structure will hold firmly your phone without concern for moving when you speed up or take sharp turns. The adjustable base has an expandable diameter from 2.4"-3.7". This allows the adapter to stay firmly in place, regardless of how rough the terrain gets. ?EASY TO INSTALL?Just insert the cup holder phone mount into the original car cup holder and turn the vane clockwise to expand the size of the bottom adapter and secure the base firmly. ?NICE COMPATIBILITY?Teacup compatible with all 4''-7'' smartphones.The bottom of the U-shaped handle slot of cup holder is about 0.5 inches from the bottom.The center console car cup holder could contain Multiple types and sizes bottles,and can be placed in two cupsfit in 2.5 - 3.8 inch bottle, The bottom is equipped with a rubber pad to effectively protect the cup and eliminate noise. ?360 Rotatable View &360 SEGMENTED BRACKET Arm?The car phone mount head could be rotated in 360°, which enables watching navigation app with the screen horizontally. Our cell phone holder car can be increased by going to tighten the segmented bracket arm to increase stability while not creating a strong wobble,and capable of 360 rotation. You can adjust the distance between you and the holder easily. ?3-in-1 Cup Holder Phone Mount?This is a 3-in-1cup holder phone mount expander, which has the functions of cup phone holder for car and cup holder expander at the same time. It can not only help you hold your cup while driving, but also help the co-pilot to hold the cup. The bottom of the cup holder is designed with an adjustable tripod, which can be very stable for any prototype..