The RAP-B-378U consists of a 2.5" / 5 cm composite B size ball base, double-sided adhesive PSA stick pad, & sealed alcohol prep pad. This base will attach to all RAM® B size double socket arms, allowing you to connect a compatible device holder. Features Flex adhesive ball base provides a strong mounting surface in a wide variety of use cases, such as a vehicle dash Included B size 1" / 25 mm RAM® rubber balls allows for connection to any B size RAM® double socket arm, ball & socket technology allows for near-infinite adjustability made from high-strength composites for durability & reliability in the most demanding environments
Dimensions Base diameter 2" / 5 cm B size Ball 1" / 25 mm Weight capacity Standard use: 2 lbs / 900 gr. Heavy-duty use: 1 lb / 450 gr.