VEVOR 4 in. x 4 in. Post Base Deck Post Base Inner Size Post Bracket Fence Post Anchor Deck Post Base (5-pieces)

3.5 in. x 3.5 in. Post Base. The VEVOR post base is rust-proof, wear-resistant, and rock-solid with black powder paint, providing the standard inner diameter of 3.6 in. x 3.6 in. The product fits deck brackets, porch railings, post holders, table leg, etc. It includes a wrench, 14 sets of 3/8 expansion bolts, and 22 sets of self-tapping screws. Your wood post will be long-lasting if you install this post anchor on it.