No need for additional drilling, with screws, easy to install.Hardened PP plastic, not afraid of bad weather from the sun and rain, to protect the outdoor wooden fence Made of high-quality and durable plastic - the plastic cap of the fence post needs to withstand for extreme weather changes. The black plastic post cover is suitable for 4X4 (3 5/8 inch) fence posts. perfect for most fence posts. Our plastic cap is made of thick, durable and weather resistant plastic, which is resistant, heat resistant, impact resistant and waterproof. Perfect decorative finish to the top of fence posts.Protects the top of the fence post from weather damage. Specification: Color: black. Material: PP. The size of the fence is: wooden fences with a diameter of 3 5/8 inch, which plays a protective effect Note: There might be a bit color distortions due to different resolutions. There might be a slight errors due to different hand measurement. Package Includes: 16column Cap 32screw Or 4column Cap 8screw