Fence Post Caps - Square - Plastic - Internal
Fence post caps that are square and made of plastic are designed to fit inside the top of a square fence post, rather than over the top of it. These internal caps are typically used to seal off the inside of the post and protect it from moisture, insects, and other debris. They also can be used to add an additional level of support for the post.
Plastic square internal fence post caps are usually made of durable, weather-resistant plastic that is designed to last for many years. They can be found in various different colors, allowing you to match them to the color of your fence. These internal caps are easy to install, typically they just press fit on the top of the post, with no need for adhesives or fasteners.
It's important to make sure that you are purchasing the right size of internal post cap for your fence posts, as they come in different sizes depending on the width of the post.