4 x 4 Post Base 10PCS,Inner Size 3.6"x3.6"Deck Post Base,Heavy Duty Metal Black Powder Coated Post Brackets,for Mailbox Post Deck Supports Porch Railing Post Holders -

Made from 14 gauge steel,black powder-coat for rust-resistant and sturdy enough,Product Size: 6.89 x 5.9 x 3.9",Quantity: 10PCS It allows easy installation on 4x4 wood posts on existing concrete with 3/8-Inch diameter anchors, wood post are NOT included The comprehensive accessories contain a wrench, 80 sets of expansion bolts, and 80sets of self-tapping screws It can be used for decking handrails, pergolas, signs, mailboxes, & garden fences,deck brackets.It would help your fences look sturdy and durable while avoiding breakages.Post bases do not provide adequate resistance to prevent rotation about the base and therefore are not recommended for non-top-supported installations such as fences or unbraced carports