The RAP-B-378U consists of a 2.5" composite base that connects to a 1" ball, double-sided adhesive PSA stick pad and sealed alcohol prep pad. This base will attach to all RAM double socket arms that will accommodate 1" ball bases.
Material: High Strength Composite
Ball: B size 1" rubber
The "U" in the part number reflects product packaged in poly bag. A secondary tether is recommended when this mount is used in high vibration environments.