High strength composite construction to hold the Apple iPhone; without case; skin or sleeve. Without mount ball. Comes with the industry standard 1.912″ (48.6mm) center to center AMPS hole pattern on the back. For use all AMPS hole pattern mounts; like RAM”s 944231 ”Diamond Mount Base”; with 1″ (25.4mm) ball; which allows this holder to be used with all RAM”s socket arms and mount bases with 1″ balls. Holds max. 2 lbs / 907 gram normal use or 1 lbs (454 gram) heavy duty use. – All buttons; cameras; ports; and speakers remain exposed and accessible – Includes two nuts & bolts for installation – Order 944231 RAM”s Diamond mount base with 1″ connecting ball separately. Required for this cradle to be used with any of RAM”s socket arms and mount bases with 1″ balls