HIGH QUALITY AND STABLE:Deck Post Base is made of 2mm thick steel, and the outer layer is protected by black powder coating which can effectively prevent rust and corrosion; Equipped with three 15cm long stainless steel screws, it can be better embedded in concrete and increase stability DIMENSIONS:The inner diameter size of these wood post anchors are suitable for 6x6 wooden columns (Actual 5.6 "X5.6"). Please confirm the size of the wooden post before purchase EASY TO INSTALL:Combine the post base, and set it in wet concrete, wait for the concrete cures and dry completely; Insert your wood post and install screws (not included) through the predrilled holes CUSTOMIZE USAGE:You can use it as a patio post holder, mailbox supporter, pergola anchor or gazebo stabilizer.You can also DIY different concrete styles, so that you can get practical and decorative bases PACKAGE CONTENTS:The package includes 2 individual post holder deck brackets?6x6 U-Shape Bracket*2 long screw*6?; Wooden posts and installation screws not included. If you have any questions, please feel free to contact us