The popular spring-loaded RAM X-Grip phone holder features an X design that expands and contracts to provide a perfect fit for your device – even if its in a case. This large version of the RAM X-Grip fits phones ranging from 1.75" to 4.5" in width and keeps your device completely functional and accessible. The included diamond ball base features the industry-standard AMPS hole pattern, while RAM ball and socket technology allow for near-infinite adjustability to achieve the ideal viewing angle – and helps to extend the life of your phone by providing shock and vibration damping. For outdoor applications – like being used as a motorcycle phone mount – the RAM X-Grip includes a device tether that is recommended for added security and peace of mind.