The RAM-B-339-A-237U consists of 1 ball base with 1/4-20 male camera thread, short double socket arm and 2.5 diameter round base with triple
Ram Mounts - Ram 1/4-20 Stainless Steel Threaded Stud with 1 Ball - RAM-B-348U-GP1
▶ The universal camera and camcorder base consists of a B size 1 ball, connected to a round plate with a 1/4-20 camera thread. ▶ The round plate
BRCOVAN 2 Pack, Aluminum Alloy 1'' Ball Adapter with 1/4-20 Threaded Stud for Action Camera & Camcorder Compatible with RAM Mounts B Size 1'' Ball
RAM-B-101U-225B RAM Drill-Down Double Ball Mount with AMPS Plate & Backing Plate
FANAUE Ball Head Adapter for Ram Mount with 1/4-20 Threaded Post and Stainless Steel B size1 Ball & 17mm Ball Bicycle cradle - AliExpress
RAM Strap Clamp, Roll Bar Mount with Medium Length Double Socket Arm & 2.5 Dia. Round Base with 1/4-20 Male Threaded Post - RAM-B-149Z-2-202AU
Aluminium 17mm Mount Double Ball Head Adapter 1/4 Screw Head Double Socket Arm for 17mm
RAM-101AU-D consists of a double socket arm and two 2.5 diameter round bases that contain the universal AMPS hole pattern. One of those round plates has a 1/4-20 male threaded post in the center. That threaded post can be removed to reveal a 1/4-20 female threaded hole.
Ram RAM-101AU-D
RAM RAM-B-149Z-237U - Handlebar Rail Mount U-Bolt Base with 1 Ball Adapter for sale online
Proaim Gripmag Car Mount with Magnetic Gripper Mechanism
RAM® Mounts Off-Road Catalog by RAM Mounts - Issuu
RAM 1/4-20 x 2 1/4 Threaded Stud with 1 Ball, 16.20 CHF