FOR OUTDOOR SPORTS: A heavy duty and easy way to securely attach Smartphones, iPhone, MP3 players, GPS Navigation devices to motorcycle, bike, bicycle handle bars, stems, exercise bikes, and other round bars with up to 42mm or 1.65 inch maximum diameter. LARGE HOLDER: Fits devices 2 inches up to 3.7 inches wide such as - Apple iPhone 8, X, 8 Plus, 7, 7 Plus, iPhone 6, 6 Plus, 6s, iPhone 5, 5s, Samsung Note 8, Galaxy S8, S8+, S7, Galaxy Note Series, LG G5, Spectrum, HTC, Motorola, Google Nexus, One Plus, and more. FULLY ADJUSTABLE: Pivot ball head joint with 360 degree rotation for customized portrait and landscape view. Easy single hand operation, angle can be adjustable for easy viewing and adjustment to avoid sun glare. PREMIUM MATERIALS: Constructed of strong ABS plastic and steel for outdoor use. Tool-free installation, just open and adjust to the preferred positioning by twisting the knob. A fuss-free way to attach or detach the mount from the bars. SECURE AND STABLE: Secure rubber holding clip bracket with pads and soft silicone grip bands offer a strong hold for stabilized screen viewing. Clear access to the screen, a great way to utilize phone maps, navigation apps, keep cycling data, or use fitness trackers.