Smallrig model 2122 L-Bracket for Sony mirrorless cameras A7III, A7RIII and A9.
Arca Swiss compatible base and side plates.
Side plate is adjustable in and out.
Has magnet Allen key holder in base.
Sells for about $80 on Smallrigs ebay site:
https://www.ebay.com.au/itm/SmallRig...item41e6949576
About six months old and maybe used twice.
No issues and in like new condition.
Asking $50 posted.
Thanks for looking.
PM me,
Greg.