The 5" Khaki External Cap is perfect for any vinyl fence with square-shaped posts of the same color. Providing a neat, finished look, this cap yields a polished look and is designed to protect and cover the tops of posts. You want this so as to not allow leaves, water, and other outside items to clutter your posts' inside. Accumulation of objects and precipitation can compromise the posts' integrity, potentially affect the foundation, and ultimately weaken the fence's strength. The 5" khaki cap resists weathering and is easy to install. To do so, apply glue to the cap's inside edges and press onto the post. With a cap like this, you can be sure your vinyl fence will look perfect for years to come.