Key Features: 1. Fits a nominal standard 4 in. x 4 in. post (actual 3.5 in. x 3.5 in. post on market). 2. Sanding/trimming may be required depending on post type and little size error. 3. Made from paintable durable Nylon plus Glass-Fiber. NO fading, aging and weakening from sun exposure. 4. FREE Stainless Steel 304 screws are included: 8 short screws (installed horizontally) to post. 12 long screws (vertically) to deck floor. 5. Thicker and higher post base bottom for better structural strength on decks. 6. Better looking than the flimsy metal ones and ours provides 20 countersunk holes for a more appealing look. Ideal for contractor and home DIY's use of fence, deck, porch railing or post mounting.