The Vevor Post Base Bracket 10-pack (Model# QBLZDZTG10J4LFBL1V0) is designed for 4"x4" posts and recommended for use with 3.5"x3.5" columns. Each bracket is constructed from heavy-gauge steel for strength and durability in deck, fence, pergola, and structural applications. All 10 post bases include mounting hardware and instructions. Arrives in original packaging in like-new condition. A cost-effective solution for post anchoring and installation.