RAM B 166 AP18U RAM Twist Lock Suction Cup Mount for the Apple iPhone 7 WITHOUT CASE, SKIN OR SLEEVE (sku 42479). Dedicated RAM mount for Apple iPhone 7, not for the PLUS series The RAM B 166 AP18U consists of a 3. 3" diameter suction cup twist lock base, double socket arm and high strength composite cradle. The suction cup, twist lock base is designed to have a strong hold on glass and non porous plastic surfaces. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at both ends of the socket arm; this with a twist of the arm knob, allows you to move the mount to your optimum viewing position. RAM Twist Lock Suction Cup with Double Socket Arm and Diamond Base Adatper YouTube Video will open in a new window Using the eBay App? Paste link into a browser window: [isdntekvideo]