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™ - the 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 0.625" 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. RAM® Vibe-Safe™ dampens a wide range of vibration frequencies. Made of high-strength composite and stainless steel hardware for durability and reliability in the most demanding environments. Unique structure and thoughtfully designed with all industries in mind. Backed by a lifetime warranty. Tech Specs: Hardware included: (1x) optional tether. (1x) glue tube for rubber caps. Holder dimensions: Width range: 1.875" - 3.25". Depth range: 0.875" maximum. Clamp range: 0.625" - 1.14" diameter. Materials: High-strength composite. Stainless steel. Weight: 0.74 pounds. Note: A reduction in vibration does not guarantee full protection of device. External immeasurable factors may cause damage to phones, cameras, and other devices while mounted in the RAM® Vibe-Safe™. National Products, Inc does not assume responsibility or liability for any such personal injury, death or property damage. RAM® mounts lifetime warranty is limited to RAM® mounts and components. The warranty does not include any device mounted or attached to a RAM® mount, such as a phone, GPS, camera, computer or other device.