Greenhouse planter bracket

Brackets designed to fit a rectangular planter (Villa brand at Bunnings, 600mm 12 liter), 6mm holes for M6 bolts to attach to the planter through some of the existing drainage holes using washers and to the aluminum profile on the wall of the greenhouse.
Printed two, one as is and the other mirrored through Cura for the other side to make it look symmetrical.