RAM 1.5" Balls Medium Length Socket Arm (RAM-201U)
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)
RAM® Ball Base for Crown Work Assist® (RAM-202U-CRO1)
RAM® Ball Adapter with 2.5" Long 1/4"-20 Threaded Stud (RAM-273U)