The RAM® X-Grip® Phone Mount with RAM® Vibe-Safe™ & Small RAM® Tough-Claw™ (RAM-HOL-UN7-462-400) is a combination of the RAM® X-Grip® Phone Mount with Low-Profile Small RAM® Tough-Claw™ and the RAM® Vibe-Safe™—our vibration damping accessory is designed to protect electronic devices from a wide range of vibration frequencies. The RAM® X-Grip® can rotate between portrait and landscape by loosening the center screw. With the RAM® Tough-Claw™ base, easily attach the RAM® X-Grip® with RAM® Vibe-Safe™ on round, square, and odd-shaped rails and bars ranging from .625” to 1.14” in outer diameter. This product comes with an optional device tether that is recommended for outdoor applications. The holder is compatible with handheld devices that will fit the dimensions listed below, it is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size.