High-Quality Material: The Deck Post Base Cover is made of aluminum alloy with one-piece casting molding and high-temperature powder baking paint on the surface (50% matte surface), Which is Waterproof, Rust-resistant and corrosion-resistant, So you don't have to worry about rust and brittleness due to the attack of rain or high temperature. Unique Design: Deck Post Covers are split design, no need to pull out the railing, Easily cover unsightly exposed post anchors or construction defects without incurring costly repairs. Present a uniform and simple beautiful visual effect for your indoor and outdoor deck railings, handrails, stairs and porches. Size: Suitable for Post size 4"x4" (Actual: 3.5"x3.5") Post, Base size 4.4"x4.4", Height size 1.56". QTY: 4pcs Quick Installation: Simply snap the Post Skirt into the post, And screw lock the two sides separately to complete the installation (The bottom of the post cover uses a fixing adhesive, Which can better prevent shifting). Service: Our Deck Post Covers make maintaining your Railings, Handrails, and Stairs quick and easy. There are three sizes for you to choose: 2"x2" Post/4.4"x4.4" Base; 4"x4" (Actual 3.5" x 3.5") Post/5"x5" Base; 4"x4" Post/6"x6" Base. If there is any quality problem, please feel free to contact us. Due to the deviation of post specifications, please measure the diameter of your post and base before purchasing to ensure that the post cover and can be a perfect match.