RAM MOUNTS Composite Diamond Base with 1" Ball & RAP-B-238-BU
Amazon.com: BRCOVAN 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 Socket Arm :
Amazon.com: RAM Mounts RAM-B-272U 9mm Angled Bolt Head Adapter Ball Base with B Size 1" Ball : Electronics
RAM® Diamond Ball Base with Mounting Hardware – RAM Mounts
Ram Mounts Motorcycle Fork Stem Base w/1 in. Ball - RAM-B-342 Dirt Bike Motorcycle - Dennis Kirk