Achla Designs Window Flower Box Clamp-On Brackets, 8 inch, SFB-02C Pair of Brackets, 8-in D at base x 7 1/4-in H x 1 1/4-in W each Wrought Iron with Black Powdercoat finish Designed to hang window boxes deck or handrails Use with Achla Designs Medium Galvanized (VFB-05) or Medium Copper Plated (C-20C) Flower Boxes or Embossed Flower Box (C-04) sold separately No additional hardware or tools required Clamp opening maximum 2 inches