The RAM-B-166-AP9U RAM Twist Lock Suction Cup Mount for Apple iPhone 4 and 4S from RAM Mounts consists of a 3.25” (8.26cm) twist lock suction cup base, a double socket arm, a diamond adapter base, and a high strength composite cradle for the Apple iPhone 4. This suction cup with twist lock base is designed to have a strong hold on glass and non-porous plastic surfaces, including RAM adhesive disks. Designed into the mount is a 1” (2.54 cm) diameter rubber ball and socket system with adjustment points at the base and cradle. With a twist of the arm knob, you can move the iPhone 4 cradle to your optimum viewing position.
Note: The 'U' in the part number reflects product packaged in poly bag.