Amazon.com: BRCOVAN 2 Pack, Aluminum Alloy Mount Base with 1'' TPU Ball & 10mm Mounting Hole, Angled Bolt Head Adapter Ball Base Compatible with RAM Mounts B Size 1 Inch Ball Double
Amazon.com: RAM Mounts RAM-B-230U Double Ball Adapter Compatible with RAM B Size Components : Electronics
RAM to Garmin Ball Adaptor – MUD-UK
Amazon.com: RAM Mounts Double Socket Arm with Dual Extension and Ball Adapter RAM-B-201-201U-C Compatible with RAM B Size 1" Components : Electronics