Jkapy Cup Holder Phone Mount for Car, 2 in 1 Cup Holder Expander for Car with 360°Rotation Long Arm Cell Phone Holder Works with Bottles 3.4-4" in Diameter, Including the Bottles Below...and Most Other 18-40oz. Bottles Please check out the picture to ensure that whether the cup holder is compatible with your car. 2 in 1 of adjustable cup holder+phone mount for car, aspect cell phone and water cup storage. No need to press around back won't get in the way of charging your phone or lightweight rechargeable battery, allowing you to navigate while charging and more. It's convenient and easy to place your cellphone on the car phone mount, and also put a large bottle in the cup holder. Works with Bottles 3.4-4" in Diameter, Including the Bottles Below...and Most Other 18-40oz. Bottles Fixed Bracket Arm Cell phone holder cup holder adopts double-section support arm, which is tightened by the spiral that fixes the bracket arm, which reduces the strong shaking and achieves a good stability during driving.