The Wimberley F-9 Flash Bracket consists of modules M3 & M9. It attaches directly to the swinging arm of the Wimberley Head Version II. Since it is attached to the head and not your lens, it remains in place when you switch lenses.
The bracket folds flat for easy storage. When folded flat, the bracket can also be used with side-mount gimbal heads such as the Wimberley Sidekick.