RAM Long Socket Arm for 1.5" Balls (RAM-201U-D)
RAM Double U Bolt Base with 1.5" Ball (RAM-235U)
RAM 2.5" Round Plate with AMPs Hole & C Size 1.5" Ball (RAM-202U)
RAM® Tough-Ball™ with 1/4"-20 x .25" Threaded Stud (RAP-379U-252025)
RAM® Double U-Bolt Ball Base for .75" - 1" Rails (RAM-235-2U)