No need to go around the back to press,you can just press the buttons on both sides of car cup holder expander with phone holder to fit all smartphones up to 4.13 inch(10.5cm)wide, with for /13 Pro/13 Pro Max/13 Mini/12/12 Pro/12 Pro Max/12 Mini/SE/11 Pro Max/11 Pro/11/XS MAX/XS/XR/X/8/8 Plus/7/7 Plus/ Galaxy S10/ S10e/ S9/ S8 and more. 2 in 1 design of car cup holder + car phone holder cleverly increases the space for storing drinks. Cup holder with 2.87 inch wide coffees/drinks; At the time comes with a can be expanded from 2.56 inch -3.94 inch diameter to fill the console cup holder to fit different vehicles, with , SUV, truck, RV, and golf cart, treadmill, sectional couch etc. Gooseneck arms do not do a stable support phone and often wobble, and 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, so you will not be confused by this and affect your travel experience. The direction of car cell phone holder can be flexibly adjusted by twisting action, and both the holder arm and phone holder can be rotated 360 degrees to adjust to a variety of angles. Partners sitting in the passenger or in the back can watch navigation/watch videos and other entertainment. Material: ABS colour: black Package Contents: 1 x Cup Holder Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.