Features: ---Torque mount with 1? rubber ball - Fits rails 1 1/8" - 1 1/2" in diameter ---Includes hex wrench and sizing inserts for a snug fit and protection of the rail ---Utilizes nylon-insert lock-nuts to prevent loosening in high vibration environments ---Short double socket arm: Overall Length: 2.38" ; Socket-To-Socket Length: 2" ---Diamond base with 1" ball with two holes 1.912" from center to center - Fits most RAM cradles ---RAM adjustable socket system easily adjusts to your perfect viewing angles ---Constructed of powder coated marine grade aluminum ---Genuine RAM Mount: Part # RAM-B-408-112-15-A-238U ---Manufacturer's lifetime warranty ---Made in the USA.