Universal Handlebar Bike Holder: This bicycle phone holder is made of aluminum alloy and lightweight. The motorcycle smartphone holder can firmly grip the phone which is stronger and more durable than the plastic and silicone cell phone holders. (Perfectly fits the width of the phone: 2.56-3.74 inch. Note: The thickness of your phone is less than 12mm.).One button quick lock: mount the phone on the bike phone holder with one hand, just press the rods Pushed to open the arm clips on both sides, when the phone touches the lock button of the bike phone holder and the phone will be clamped automatically. Easy to take your phone from the bike for emails, calls, selfies while on a bike trip.Attach the smartphone holder by turning the red nut. Use a universal key to attach the bicycle phone holder to the handlebars. This motorcycle smartphone holder is adjustable between 22mm and 31.8mm (0.86-1.25 inch) in diameter. Two silicone pads are included and you can add or remove the silicone pads depending on the diameter of the handlebars.