PBSA1 Bracket plate for Sony Alpha A7 IV Arca-Swiss Type SS2 or QD Strap Port Socket:SS2 Strap port | Discontinued No Returns the Arca-plate is compatible with

the Arca-plate is compatible with any Arca-swiss tripods and monopods

The TR02 only has one knob

the three positions allow the tripod to go very low to the ground

What's in the Box BH50c40 Ball Head

PBSA1 Bracket plate for Sony Alpha A7 IV Arca-Swiss Type SS2 or QD Strap Port Socket:SS2 Strap port | Discontinued No Returns the Arca-plate is compatible withThis ProMediaGear bracket plate is custom fitted for Sony Alpha A7 IV. The bracket plate can be mounted to ProMediaGear flash brackets or L Brackets. Since it is custom designed it fits like a glove perfectly matching the camera shape, it also provides anti rotation so the plate won't slip or twist. The plate has been machined from solid Aluminum T6061 block and has a hard black anodized surface coating for a scratch resistant finish. The plate also