The SP Connect TM CLAMP MOUNT can be attached to any bar or tube with a diameter between 23 & 43mm (0.9 – 1.7 inch). The mount allows for a 360° rotation of the attached device. Your smartphone can be securely fastened to bicycles, motorbikes, golf trolleys or baby strollers allowing you to use your apps to access your playlists, read messages or navigate. Features 360° rotation/ 6° increments For diameters from 23-43mm (0.9 – 1.7 inch) Go Pro® compatible Included 1x Clamp Mount 1x Micro Rail Adapter 2X Clamps