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; camera; 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