PERFECT COMPATIBILITY: New 16 different joints kit suitable for 99% (NOT ALL) dash camera, Action Camera, GPS and more. The ball dia of the dash cam mount is 0.63inch. For easy installation, please make sure the car rearview has (MORE THAN 0.4 INCH) space on the back of the mirror. BEST DASH CAM COMPANION: Mount your dash cam behind the center of the windshield to make a safe driving, since it allows them to record a clear unobstructed view ahead and doesn't interfere with the view when driving. STRONG PIPE MOUNT: Tool-less and easy to install & removed, the mirror dash cam mount would be easy to lock on car rear view mirror/bike/motorcycle handlebar and any round pipe dia, Come with two long screws and two short screws, From 0.5- 2.6 inches. Kindly check pictures for reference before purchased. 360° ROTATION FREEDOM: Adjustable ball and socket joint, real 360-degree rotation design, adjust to any angle you need, be it horizontally or vertically, the dash cam mirror mo