The SM6RM023 Robust universal car cup holder phone mount is part of Arkon's Robust Mount Series. This sturdy mount's one-piece base fits easily into any car or truck cup holders, as it twists to expand to as wide as 3.5 inches in diameter. The mount features Arkon's Slim-Grip Ultra phone holder, which holds smartphones up to 7.5'' tall, including iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone XS Max, iPhone XS, iPhone XR, iPhone 8 and 8 Plus, Samsung Galaxy S10, S9, and S8, and S7, Galaxy Note Edge, Note 9, Note 8 and Note 5, Google Nexus 6 and Nexus 5, and LG G6, G5, and G4. It also holds midsize (7'' or 8'' screen size) tablets, including iPad mini, Galaxy Note 8.0, Galaxy Tab 3 7.0 and 8.0, Galaxy Tab Pro 8.4, and Google Nexus 7. This patented holder expands to accommodate all smartphones and midsize tablets (even those with skins and ruggedized cases) up to 7.5'' tall (with all 4 long legs attached). The holder's spring-loaded mechanism makes it easy to insert or remove the device with one hand, yet holds it securely. The top and bottom adjustable-leg design of the Slim-Grip Ultra Holder helps keep any side buttons and ports unobstructed, making it ideal for using the side-accessible buttons on the Samsung Galaxy S7 edge or Note Edge. Eight support legs (4 short and 4 longer versions) are included that can be customized for optimum fit of your device.