Arkon's RVMC2B RoadVise premium aluminum motorcycle phone mount fits phones with cases weighing up to 2 pounds and measuring up to 4'' wide, including Apple iPhone X, iPhone 8 and 8 Plus, iPhone 7 and 7 Plus, iPhone 6S and 6S Plus, iPhone 6 and 6 Plus, Samsung Galaxy S8, S7, and S6, Galaxy Note 8, Note 5, and Note 4, Google Nexus 6 and Nexus 5, HTC One M9, One M8 and One Max, Nokia Lumia 1020 and 1520, and Motorola Moto G and Moto X. The mount's solid construction provides strength and reliability on the road by featuring a spring-loaded mechanism that expands to securely hold smartphones up to 4'' wide. Arkon recommends using the RoadVise Holder with smartphones with skins and ruggedized cases. The RoadVise is designed to use two hands to install and remove your device. This is to make sure your device cannot be accidentally removed while adjusting viewing angle. The low-profile holder keeps rear smartphone cameras free for spontaneous pictures or videos. The motorcycle phone holder is easy to install. Just snap it onto the 17mm ball of the pedestal and use the included tightening ring to secure. Available in black or chrome (see Arkon Model RVMC2C) finishes, the mount is made of aluminum and features a minimal but solid design. The mount fits on handlebars measuring up to 31.75mm or 1.25 inches in diameter and is easy to install with the included hex key. (Three handlebar spacer/adapter rings of different widths are also included with the mount. Choose the appropriate size for optimum mounting to your handlebar.) Garmin GPS devices can also be mounted by simply removing the holder and revealing the 17mm ball mount base. It's a solid mount solution that's perfect for your needs.