Simpson Strong-Tie E-Z SPIKE is an excellent solution for installing a 4x4 post directly into the soil without the need for digging holes or pouring concrete. This attractive and sturdy post base securely holds 4x4 posts in place, making it i for mailbox posts and various other applications where quick and easy post installation is required. Constructed from 12-gauge steel with a black powder-coated finish, it strong corrosion resistance for long-lasting durability. Installation is simple using Simpson 8-1/4" SDS double-barrier coat or hot-dip galvanized lag screws, ensuring a reliable and secure fit every time. Model Number: FPBS44