Mount a smartphone on a car or vehicle for motion shots with this SC-01 Suction Cup Mounting Kit from Leofoto. The kit consists of a strong SC-01 suction cup, an articulating magic arm, and a smartphone clamp. The suction cup mounts onto a flat, non-porous surface and features a valve and pump that supports up to a maximum 55 lb load and has a suggested/safe load of 2.2 lb.
The 3.7" long magic arm has ball heads at either end and a 1/4"-20 screw on one end and a 1/4"-20 thread on the other end. It mounts onto the suction cup and the smartphone clamp mounts onto the top. The smartphone clamp supports phones from 22.2 to 3.5" wide.