RAM X-Grip Holder Small Twist Lock Suction Cup Mount RAP-B-166-2-UN7 for iPhone

The RAP-B-166-2-UN7U consists of a 2.75" twist lock suction cup base, double socket system and universal spring loaded X-Grip ® cradle for cell phones. The suction cup, twist lock base is designed to have a strong hold on glass and non-porous plastic surfaces, including adhesive disks.

eBay