GreenLighting 4" x 4" Plastic Fence Post Cap Cover for Wood & Vinyl Posts (Antique Bronze) DURABLE PLASTIC CONSTRUCTION- The weather resistant plastic construction is designed to handle the normal outdoor elements, and features a metal-toned exterior to add a touch of style to any yard. FITS BOTH VINYL & WOOD POSTS - Designed to fit virtually any post size, the GreenLighting Plastic Post Cap is your one-stop solution for dressing up those plain fences. Place your post cap directly onto your 5 inch vinyl post or attach one of the 2 included base adapters to dress up those boring 4 inch wood and vinyl posts. DRESS UP YOUR YARD - Let's be honest, fences are boring and not the best item in your yard to look at. Now you can add a touch of style to your fences to make them really pop out. SIMPLICITY AT IT'S BEST - Stop messing around with those complicated installations. GreenLighting has kept it simple by providing you with all the brackets and mounting screws needed to get your light set up right out of the box. SPECIFICATIONS - Measures 5.25" x 5.25" x 1.7"