RAM 2.5" Base w/ Thread & C Size Ball (RAM-202U-MT1)
RAM Short Socket Arm for 1.5" Balls (RAM-201U-B)
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® Universal Backing Plate Mount (RAM-101U-B-XAT1)