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 it's in a case. Made of high-strength composite and stainless steel, the RAM® X-Grip® phone holder is compatible with a wide variety of RAM® double socket arms and mounting bases. This version of the RAM® X-Grip® fits phones ranging from 1.87" to 3.25" in width and keeps your device completely functional and accessible