VEVOR No Dig Ground Anchor, 1 Pack 10 x 7 x 70 cm DIY Screw in Post Stake, Includes 6 Lag Bolts & a Rebar, U-Shape Heavy Duty Steel Post Holder, Great for Mailbox Posts and Fence PostsProduct Features Thickened Hard Steel Made from thickened, solid hard steel, the added thickness significantly increases its hardness, making it sturdy, durable, and resistant to deformation. Corrosion and Rust Protection The fence post spike is coated with a powder coating layer, offering strong resistance to corrosion and rust, fearless against the erosion from soil and rain. It also protects the wood from rot, significantly enhancing its lifespan.