The mailbox post guard is designed to fit on posts with dimensions of 3 1/2 in. x 3 1/2 in. or slightly smaller. Before purchasing, it’s essential to check the lumber dimensions to ensure a proper fit. This guard serves as a protective shield for the 4×4 post against weed eaters, effectively preventing damage such as scratches and wear. Made from 5052 – H32. 090 sanded aluminum, it has the advantage of not rusting. This material not only guarantees long – term durability but also maintains a good appearance over time. The 2 – piece set comes with 8 x 3/4 self – tapping wood screws, making installation easy and convenient. Installation of the guard on the post is straightforward and can be done to prevent further damage. It offers an effective way to protect the post from various types of damage, prolonging its lifespan and keeping it looking good. Overall, the mailbox post guard is a practical and reliable solution for safeguarding posts, ensuring they remain in good condition and withstand the wear and tear from weed eaters.