A great base for installing a 4x4 post into soil. This attractive post base will hold a 4x4 post securely in place. Great for mailbox posts. Allows easy installation of 4x4 wood posts without digging holes or pouring concrete. Can be used for a variety of applications where quick-to-install posts are needed. Post installs with Simpson 8-1/4-inch SDS double-barrier coat or hot-dip galvanized lag screws. 12-gauge black powder-coated finish steel for corrosion resistance. Overall length is 34-7/8 inches.