4 x 4 Post Base, Inner Size 3.9"x3.9" Deck Post Base, Heavy Duty Thick Steel Powder-Coated Wood Fence Post Brackets, Post Anchor for Mailbox Post Deck Supports Porch Railing Post Holders

✅ [Heavy-duty Steel Material] - This bronze mailbox mounting plate is made of high-quality steel material, rust-proof and corrosion-proof for long-lasting usage.

The finish is powder-coated to withstand various outdoor conditions, so there is no need to worry about the weather.

✅ [Firm & Steady Post Base] - Our mail mount base is fit for 3.9" x 3.9" posts to provide a firm and steady connection with your ground.

It is suitable to be used with our surface mount post (not included) for mounting your mailbox onto the curb or sidewalk, securing to various mounting surfaces.

✅ [Effortless To Install] - All necessary installation hardware like screws and a wrench are included for your effortless assembly.

With the instruction, there is no need to worry about the installation.

You can quickly and easily finish the installation by yourself.

✅ [Enlarged Plate With Holes] - With the enlarged bottom plate, the mailbox post base mount is more stable.

The pre-drilled screw holes are convenient for you to connect with a mailbox.

And there is a drain hole at the bottom to avoid water corrosion, so no worry about rain or snow.

✅ [Wide Applications] - This mailbox plate base will provide stable support for your mailbox post on the roadside soil ground or concrete ground.

It is also ideal for balcony fence, staircase handrail, porch railing, table leg, outdoor deck, etc.