The RAP-B-224-1U by RAM Mounts consists of a 3.3" diameter suction cup twist lock base that is connected to the (RAM-B-238U), diamond base with B size 1" rubber ball.
The RAM-B-166-202U-UK1 consists of a 3.3" suction cup twist lock base, standard length double socket arm, round base adapter that contains the universal AMPs hole pattern and mounting hardware
The RAP-224-1U is a Suction Cup Base with Twist Lock. The Suction Cup Base w/ Twist Lock is the perfect addition to your set-up for your next adventure.