The RAM® Torque™ rail mounting base securely attaches to bars 1.5” to 2” in diameter. The double-sided Pin-Lock™ rail base and ball allows for the connection of up to two devices and is ideal for securing small electronics, spotlights, cameras, or cup holders to ATVs, Side By Sides, off-road vehicles and heavy equipment rail bars. Sizing inserts are included to provide a snug fit and protection of the rail, and the mount utilizes nylon-insert lock nuts to prevent loosening in high vibration environments. Available separately, the RAM B Size Ball Add-On allows you to attach an additional B Size Ball to the Torque™ Rail Base for mounting multiple devices.