Photo 1 of 4Pcs 4"x4" Heavy Duty Stainless Steel Post Base,Post Anchor Bracket, Concrete Support Anchor Base Wood Post for Deck Railing, Fences, Mailboxes, Pavilions,Deck Porches Inner Size:3.5"x3.5" (4, 4"x 4")

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Photo 1 of 4Pcs 4"x4" Heavy Duty Stainless Steel Post Base,Post Anchor Bracket, Concrete Support Anchor Base Wood Post for Deck Railing, Fences, Mailboxes, Pavilions,Deck Porches Inner Size:3.5"x3.5" (4, 4"x 4")