?Handlebar Compatible?Mount base diameter can be adjustable from 0.62 inches (1.6cm) to 1.25 inches (3.2cm)for any handlebars of bicycle/bike/motorcycle/scooter/motorbike/road bike/mountain bike/street bike/electric bicycle/electric bike/spinning bike (with cylindrical handle bar). ?Universal Fit?Compatible with iPhone 11 Pro Max/11 Pro/11/ XS Max/XS/XR/X/8 Plus/8/7 Plus/7/6/6S, Samsung Galaxy S10 Plus/S10/S10E/S9 Plus/S9/S8 Plus/S8/Note 9/Note 8/S7 Edge, and other 4.0"-6.6" smart phones. ?360°Free Rotation+locked knobs?You can freely adjust the phone mount according to your perfect viewing angle (horizontal, vertical or any angle you want). locked knobs, On bumpy roads, you can always maintain the Angle you want, riding and photography more convenient!. ?High-level anti-theft?Anti-theft screw design to prevent the bracket from being stolen, (Meihua hole + inner hexagonal column)The Latest Design! More Sturdy and Securely !. ?Shockproof Protection? The bike phone holder comes with Soft silicone protect the phone, which effectively prevent your phone from scratches. fast one-key lock, this design can catch your phone firmly. And the phone doesn't shake and wobble when riding.