[Ultimate Convenience] 2 in 1 Car Cup Holder Expander with phone mount cleverly expands drink storage space while securely holding any type of cell phone, providing unparalleled convenience while driving [Safety Design] 2 in 1 cup phone holder for your car featuring a stable base with a triangular locking structure that can be expanded from 2.56"-3.94" in diameter to fill the console cup holder to fit different cars, compatible with SUV, truck,RV,golf cart,treadmill,sectional couch etc. Our adjustable cup mount ensures superior security, eliminating shaking while driving and preventing accidents caused by unclear phone visibility or loose parts [Enhanced Stability] Gooseneck arms do not do a stable support phone and often wobble, and our car phone mount 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. And adjust the holder and phone