The RAM-B-149Z-UN7U bundle includes a zinc-coated U-bolt base, a double socket arm, and a universal X-Grip® cradle. It?s compatible with rails ranging from 0.50?? to 1.25?? in diameter and comes with black cover caps for a polished look. The mount utilizes a patented 1?? diameter rubber ball and socket system, allowing for flexible adjustments and optimal viewing angles. The package also includes a composite rail adapter for narrowing the rail width to a minimum of 0.5??. The X-Grip® cradle features a secure four-leg design without obstructive foam pads or plastic, accommodating various cell phone sizes thanks to its spring-loaded mechanism. This sleek and versatile cradle is an excellent addition to modern vehicle interiors and includes a device tether for outdoor use. Please verify your device?s dimensions, especially if it has a case, to ensure compatibility.