CRIZTA 4 Pcs 36" Heavy Duty 4x4 Fence Post Anchor Ground Spike Metal Black Powder Coated - Mailbox Post Anchors. Length: 36 inches, Outer Dimension: 4” x 4” (Fit 3.5” x 3.5” Square Wood Post)

Easy Installation : Totel length: 36”, fit 3.5” x 3.5” wood posts without digging holes or pouring concrete.

Take a scrap piece of wood to hammer the post anchor in the ground by using a mallet or a sledge hammer and it will drive the post anchor all the way in the ground.

Sturdy And High Quality: The Post Anchors are Powder Coated Strong Street to last many decades to come and protect your decking wood from rotting.

Multiple Uses: Screw In 3.5 inch x 3.5 inch Post Anchors are Ideal for Mailbox installations, Fencing, Decks, Street Lamps, etc.