UPDATE - Adjustment screws are lengthened for firmer grip and larger clamp. STABLE AND SAFE - Rotate the side screws as advised to hold your phone tight, the rubber strips will protect your phone and handlebar from being scratched. 360 DEGREES ROTATING - Adjustable rotating head allows for ideal positioning and easy viewing of the electronic device while riding. Quick-disconnect design allows for easy removal of device within just a few seconds. HANDLEBAR COMPATIBILITY - Adjustable holders to fit handlebar sizes from 3/4” to 1-3/4” in diameter. The aluminum phone mount is designed for power sports and will firmly hold the phone in place. It can be installed on the handlebars and fit for almost any vehicle on the market, such as Harley, All-terrain-vehicles, Street-motor-scooters, Off-road-motorcycles, E-bike, Street-sport-motorcycles, etc. UNIVERSAL FIT - The universal bike phone holder mount fits almost any cell phone up to 3.7” wide, including iPhone 15 pro Max/15 Max, iPhone 14 Pro/14/13/12, iPhone XS/XR, iPhone 8 Plus/8/7, Samsung Galaxy S23 Ultra, Moto Razr 40 Ultra, TCL 10 Pro, TCL 10L, OnePlus Ace 2 Pro, HTC U23, etc. It allows for full access to your phone screen.