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" RAM rubber ball allows for connection to any B size RAM double socket arm; ball and socket technology allows for near-infinite adjustability Made of high-strength composites for durability and reliability in the most demanding environments Clean surface thoroughly before adhering the ball base and allow at least 24 hours for the adhesive to fully bond to surface before adding any mounting components Backed by a lifetime warranty 1" Rubber Ball "B" Size High Strength Composite This base will attach to all RAM double socket arms that will accommodate 1" ball bases 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 Lifetime warranty