RAM Mounts Ram Quick-Grip Pro Fork Stem Mount Pro versions of the RAM Quick Grip Phone Holder debut a revised design and look with integrated rubber side arms to provide a secure. Pro models feature a spring-loaded design that allows easy one-handed insertion and removal of your phone. The adjustable side arms ensure that your phone will remain secured in the holder without blocking any ports or buttons. The phone holder is RAM Compatible and features the 2-hole Amps pattern for building custom, personalized mounting solutions with other RAM mounts and accessories. An integrated cavity for an Apple MagSafe puck allows you to turn the phone holder into a wireless charging solution (sold separately), and the included anti-slip cover ensures a flush fit when the Apple MagSafe puck is not installed. This kit's included motorcycle fork stem base fits into the cylindrical bore wall of fork stems that that measure 12mm to 38mm (.5 to 1.49) in diameter. RAM recommends installing the provided device tether when this holder is used in a vehicle with an open cockpit. Phone Dimensions: Standard: Tapered holder with side arms Height Range: 5.5 - 7.75 Width Range: 2.625 - 3.75 Max Depth: .67 XL: Rectangular holder with top and bottom arms Height Range: 5.375 - 7 Width Range: 2.75 - 3.5 Max Depth: .75 Specifications: Fork stem mount Fits into the cylindrical bore wall of fork stems Compatible with hollow fork stems ranging from 12mm to 38mm (.5 to 1.49) in diameter 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. 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. Features: Spring-loaded holder Adjustable side supports overmolded with a soft rubber that provide a secure hold for a variety of phones Easily insert and remove your phone with one hand Center cavity compatible with Apple MagSafe puck Non-slip cover and puck adhesive included Comes with optional device tether for open cockpit environments Backed by a RAM lifetime warranty