Universal smartphone compatibility with a spring-loaded X? Grip cradle that securely holds most iPhone (1117/Pro/Max) and Android phones (Galaxy Pixel Ultra) without blocking buttons or ports. Includes 2.5 drill-down base with RAM B-Size (1) ball mount and medium arm providing a stable secure foundation for desks workbenches dashboards or other flat surfaces where a rugged permanent installation is needed. Secure adjustable X? Grip hold uses rubber-capped arms and spring tension for a snug grip; optional device tether adds extra peace of mind during rugged riding or off-road use. Rugged durable construction with powder-coated marine-grade aluminum high-strength composite and stainless steel hardware to resist vibration and weather backed by RAM Mounts lifetime warrantyEasy one-hand operation lets you quickly insert or remove your phone perfect for commuting touring and multi-vehicle use.