This single handle tray comes with a T Groove Base Ball Mount adapter . it allows to mount ball arm or buoyancy ball arm fit for camera housings not longer than 24 cm in its width. one good thing for this tray is its multi choices of restructuring you can replace the T groove ball mount by flex arm , aluminum handle or even T base ball adapters . here are photos for your reference:
Choices of restructuring :
This single handle tray comes with a T Groove Base Ball Mount adapter . it allows to mount ball arm or buoyancy ball arm fit for camera housings not longer than 24 cm in its width. one good thing for this tray is its multi choices of restructuring you can replace the T groove ball mount by flex arm , aluminum handle or even T base ball adapters . here are photos for your reference:
