STRONG AND STURDY: The deck post base is made of thickened stainless steel with a seamless welding process. It has excellent wear and fracture resistance. The black powder coating gives anti-corrosion and anti-rust protection. AIR FLOW CHANNEL DESIGN: The bottom of the post bracket is designed with an air flow channel to ensure that the bottom of the wood post is well-ventilated and kept dry, enhancing longevity by preventing moisture damage. HIDDEN ANCHOR SYSTEM: The fasteners are concealed, creating a clean, streamlined look for your deck post base. Our post base is suitable for 6x6 posts (actual size 5.5"x 5.5") is used for wood or concrete floors, suitable for many scenes such as pergolas, mailboxes, porches, gazebos, deck railings and etc. HOW TO INSTALL: The package includes all necessary fasteners and screws. If your foundation is wooden, please secure the brackets to the floor with hex-screws for a wood floor and then lock the 7/32” hex screws to connect the posts with the brackets. If your foundation is concrete, please secure the brackets with a sleeve bolt for concrete and then lock the 7/32” hex screws to connect the posts with the brackets. SET CONTAINS:Post Base Bracket *2, Hex Screw*16, Drill Bit *1 , Hex Socket Tool *1, Hex-Screw for Wood Floor *8, Sleeve Bolt for Concrete*8. Post Base