RAM Mounts X-Grip Universal Bicycle Mount Kit The Rap-274-1-Un7 is an ensemble of a universal bicycle mount, strong tie downs, and an X-Grip holder. The X-Grip holder, an integral part of the combo, features a concise and ingenious four-leg design that holds your phone securely without the need for foam pads or plastic. The springs in the X-Grip holder are designed to flex, providing an ideal, custom fit for your mobile device. For outdoor usage, the X-Grip comes with a suggested device tether. Bicycle Mount Clamp Range: Fits bars 0.5 - 1.68 diameter Standard Size Compatible Devices: Apple iPhone 11 Apple iPhone 11 Pro Apple iPhone 6s Apple iPhone 7 Apple iPhone 8 Apple iPhone SE Apple iPhone X Apple iPhone XR Apple iPhone XS Google Pixel 3 Google Pixel 4 Google Pixel 4 XL Huawei Mate 20 Pro Huawei P30 Pro Motorola Moto G6 Motorola Moto G7 Power Samsung Galaxy A10 Samsung Galaxy A20 Samsung Galaxy A50 Samsung Galaxy Note 8 Samsung Galaxy S10 Samsung Galaxy S10+ Samsung Galaxy S10e Samsung Galaxy S20 Samsung Galaxy S20+ Samsung Galaxy S7 Samsung Galaxy S7 Edge Samsung Galaxy S8+ Samsung Galaxy S9 Samsung Galaxy S9+ The X-Grip 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. X-Grip Dimensions: Width Range 1.875 to 3.25 Depth 0.875 max Includes: Optional tether Glue tube for rubber caps Flat rubber spacer Angled rubber spacer 3.06 rubber pad 7 cable ties (2) Material: Powder coated marine grade aluminum, marine grade stainless steel components and high strength composite.