Features: This product adopts a 2 in 1 design, which can hold both a mobile phone and a water bottles at the same time; The matchings phone case is easy to install, plugs and play, and can be removed at any time when not in use; The cup holder can hold water cups with a diameter of 73mm or less, and the phone case can hold phones with a width of 97mm or less; The cup holder is equipped with four silicone sheets, which can hold most size of cups/bottles, so that the water cup will not shake when driving on bump roads; Easy to install: It is usually installed next to the center consoles or seats, easy to install, doesnot require complex operations, and can be quickly put into use. Specifications: Material:ABS Expandable Base Ranges:66-100mm/2.6''-3.9'' Package Includes: 1Piece Cup Holder Expander note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.