【Fit 4x4】Specifically designed for 4x4 nominal wood posts (actual size 3.5" x 3.5"), these 4x4 post caps provide a secure, wobble-free fit. Perfect as fence post caps for outdoor fences, decks, mailboxes, and other wooden structures. 【Premium Aluminum】Made from high-quality aluminum, these post caps 4x4 offer durability, resisting impact, rust, and corrosion. The thick 2mm sidewalls provide added strength, ensuring long-lasting performance for your deck post caps and fence posts. 【Matte Coating】Finished with a black matte powder coating, these black post caps are built to resist rust, UV rays, and fading. Designed for all-weather performance, they keep your fence post caps 4x4 looking stylish and well-protected year-round. 【Easy Install】Install these 4x4 fence post caps by placing them on the wood post, tapping with a rubber mallet, and securing with the included screws. This quick, DIY process makes them ideal as decorative pyramid post caps for your projects. 【Versatile Use】These deck post covers and fence post caps enhance the look of fences, decks, mailboxes, and garden posts. The pyramid shape acts as a decorative topper, adding style while protecting against weather damage. Perfect Fit for 4x4 Posts The interior dimension of this 4x4 matte black pyramid cap is 3-5/8" x 3-5/8", designed to fit 3.5" x 3.5" up to 3.625" x 3.625" wood posts. These caps tightly seal the top of wooden posts, preventing insects and small animals from entering while enhancing durability and protecting against environmental damage. Durable Metal Construction Crafted from high-quality metal, these decking post caps feature thick 2mm walls and a pyramid design that prevents dust, snow, and debris buildup. The three-layer black powder coating resists rust, corrosion, and weathering, ensuring reliable long-term protection for your outdoor wood posts. Low-Maintenance Design These metal post caps are built for convenience. The matte black surface is easy to clean with just water or soap, reducing maintenance time and effort. The durable finish keeps the caps looking new and protects your wooden posts for years, even in harsh outdoor conditions. Effortless DIY Installation Installing these 4x4 fence post caps is quick and hassle-free. Simply place the cap on the wood post, tap gently with a rubber mallet for a snug fit, and secure it with the included screws. Once installed, these caps remain firmly in place, offering reliable stability without the need for professional tools. Stylish and Versatile Protection Designed for fences, decks, mailboxes, garden posts, and more, these decking post caps add a decorative touch while providing robust protection. The pyramid shape doubles as a decorative topper, preventing water pooling and minimizing dirt buildup, making them perfect for enhancing outdoor aesthetics. Product Specifications Material: Premium metal with matte black finish Post Fit: 4x4 nominal wood posts (actual size 3.5" x 3.5" to 3.625" x 3.625") Wall Thickness: 2mm Height: 1.58 inches Coating: Three-layer powder-coated surface Shape: Pyramid Includes: Screws for secure installation