RAM Medium Tough-Claw Clamp Base with 1.5 Inch Ball

A quick and easy mounting base for a variety of uses! Features:   Clamps to rails from 1" - 1.875" and flat surfaces from 0" - 1.6" Built-in 1.5" ball - Connects to a variety of C size socket arms Compact design - 5.81" tall: 1.56" wide Works on round, square, odd shaped rails and bars Rubber pads provide stable, even gripping and protection of mounting surface Quick and easy installation and removal - no tools required Constructed high strength composite and stainless steel hardware Holds up to 4 lbs. Made in the USA Brand: RAM Mounts Part number: RAP-404U Warranty: Manufacturer's lifetime warranty